DREYFUS INSURED MUNICIPAL BOND FUND INC
N-30D, 1999-01-07
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DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

LETTER TO SHAREHOLDERS

Dear Shareholder:

  We  are  pleased  to  provide  you  with  this  report  on the Dreyfus Insured
Municipal  Bond Fund, Inc. for the six-month period ended October 31, 1998. Your
Fund  produced a total return, including share price changes and dividend income
generated,  of 5.52%,* and an annualized tax-free distribution rate per share of
4.55% .**  This  compares  with  a total return of 5.11% for the Lehman Brothers
Municipal Bond Index during the same period.***

The Economy

  In  the  face of soaring consumer confidence and strong first-quarter economic
growth,  the  Federal  Reserve Board earlier this year refrained from increasing
interest  rates,  partially  to  avoid  further  roiling international financial
markets.  In  addition,  the  Fed evidently felt then that the economic slowdown
overseas  might  curtail  the U.S. economy to some degree, which would alleviate
the  need for monetary restraint. The Fed's expectations have proven to be true,
and its judgment accurate. The U.S. balance of trade has worsened and there have
been  increasing  signs of a slowdown in export-related industries. On September
29,  concerns  about  a  weakening  U.S.  economy caused the Federal Open Market
Committee (the F.O.M.C. is the policy-making arm of the Fed) to pare the Federal
Funds  target  rate  by 25 basis points, the first reduction since January 1996.
(The Federal Funds rate is the rate of interest that banks charge each other for
overnight loans.) Fed Chairman Alan Greenspan described the economic outlook for
the  United  States as having "weakened measurably." Two weeks later, on October
15,  the  F.O.M.C. again reduced its target rate by an additional quarter point,
putting the Federal Funds rate at 5.0%.

  Despite  the  concerns  of  the  Fed regarding an economic slowdown, aggregate
economic  statistics showed a growing and resilient economy during the reporting
period.  Low  unemployment  and  negligible  inflation, combined with car makers
rebuilding  inventory  after a long strike and rising consumer incomes, resulted
in  solid  economic  growth  (3.3% ) for the third quarter of this year. While a
significant  portion  of  this gain was due to inventory replenishment after the
automobile   strike,   the  overall  results  were  still  an  improvement  over
second-quarter  economic  growth  of 1.8%. Inflation as measured by the Consumer
Price Index remained at levels not witnessed since 1963.

  The  Fed' s responsibility is to enact monetary policy that is anticipatory of
future  economic  conditions.  The  U.S.  trade  deficit  has continued to widen
because   of   the   global  economic  slide.  Slumping  exports  have  weakened
manufacturing  activity  since  midyear and there is concern that this slackness
could  become more pronounced and widen into other sectors of the economy. While
the  increase  in  imports  also  restrains  domestic  production, it has helped
contain  inflation  as  well,  since  domestic  producers are reluctant to raise
prices. This provides additional flexibility for the Fed to lower interest rates
still further. So far, economic problems overseas have not caused any measurable
reaction  in  the  U.S. labor market. Only the growth rate in new jobs has eased
from  its  torrid  pace  earlier in the year. The unemployment rate has remained
near  30-year  lows and worker inflation-adjusted take-home pay has been rising.
The  condition  of  the labor market is a key determinant of consumer confidence
which,  of  course, relates directly to consumer spending, a force that accounts
for  two  thirds  of all economic activity. Business spending has shown signs of
weakness,  so the role of the consumer will be of even greater importance in the
future. It is significant that measures of consumer confidence have receded from
earlier  record high levels, largely because of concerns about the volatility of
financial markets.

Market Environment

  On  the  surface,  the prevailing conditions in the domestic U.S. economy over
the  reporting period would not be viewed as favorable for the bond market. Firm
levels of growth, high rates of capacity utilization, low rates of unemployment,
strong  measures of consumer confidence and steadily rising wages would normally
be  viewed  as  a presage of higher yields and lower prices for all fixed income
investments,  including  municipal  bonds.  In fact, just the opposite happened.
Long-term  bonds enjoyed strong performance over the period, as witnessed by the
decline  in  yields for 30-year U.S. Treasury bonds to levels not seen since the
Treasury    began    issuing    them.

  The  reasons for this period of uncharacteristic strength lie in the evolution
of the global market environment we have witnessed in recent years. As political
leaders  around  the  globe  have  pursued  policies  which  seek  to  stimulate
unobstructed  cross-border  trade, and as the technology to support these market
initiatives  has  evolved,  there has emerged an interrelationship of heretofore
disparate  events  which  render  no single market unique and isolated. As such,
what  guided  the  fixed  income  markets  over  the  last  six  months  was the
deflationary  impulse  emanating from the economic turbulence which has occurred
in  Asia  and  Russia  over  the past 18 months. As market participants began to
sense  the  depressant  effects  these  events  could have on domestic activity,
skepticism  emerged  as  to  the  prevailing  level of equity valuations and the
earnings  forecasts  they  imply.  As  the resulting volatility in stocks forced
prices  to correct sharply in August, asset allocation models indicated value in
the  relative  stability  of  fixed  income  investments.  The resulting flow of
investor  assets  into  bonds  during  September and October propelled prices to
their    highest    levels    of    the    period.

  While  municipal  bond  yields  shared  in  the  relatively strong bond market
performance  of  the most recent reporting period, they did tend to underperform
their  taxable  counterparts.  A  comparison of the relative movement of taxable
yields  as  measured  by  30-year  U.S.  Treasury  bonds and municipal yields as
measured by the Bond Buyer 25 Bond Revenue Index illustrates this point. For the
period, Treasury yields declined by 87 basis points (0.87%) to end the period at
5.16%  while  the yield on the Revenue Index declined by 28 basis points (0.28%)
to  5.24% . Corresponding with these yield declines, the prices of U.S. Treasury
securities  increased  more  significantly  than  the  prices of municipals. The
reason for this relative underperformance is the formidable amount of supply the
municipal  market  was  forced  to  absorb  as  issuers rushed to market to take
advantage  of the lower financing costs available. Through October 31, new issue
volume  for  the  year has increased by nearly 32% over the same period of 1997,
climbing  to  more  than  $234  billion  and putting 1998 on a path to being the
second-largest  volume  year  in  history.  This  relative  underperformance has
rendered  municipal  securities  inexpensive  in  comparison  to  their  taxable
counterparts  by  recent  historical  standards,  thus  meaning potentially more
upside in terms of price performance.

Portfolio Focus

  In   managing  your  Fund' s  assets  in  such  an  environment,  a  decidedly
constructive  posture was maintained throughout the period. This means that cash
reserves  were  held  at minimum levels necessary to fulfill portfolio liquidity
requirements.  Trading  sought to secure those issues offering not only generous
levels  of  tax-free  income,  but  also  the  potential for significant capital
appreciation as interest rates declined over the period. Throughout this process
we continued to monitor the underlying creditworthiness of the Fund's individual
holdings   in   an   effort   to  maximize  the  liquidity  and  credit  quality
characteristics of the portfolio.

  Going  forward,  while  we continue to maintain a constructive outlook for the
bond  market,  we remain vigilant for any signals that the current accommodative
stance  of  monetary  policy  could  be  reversed should unintended inflationary
signals emerge. Should this occur, a decidedly more conservative posture will be
employed  in  which,  for  example,  a greater emphasis could be placed on those
issues  bearing  higher  levels  of  income  and  lesser  degrees  of  principal
volatility.

  We  appreciate your investment in the Dreyfus Insured Municipal Bond Fund, and
we  want  to  assure  you  that we are, at all times, working in the Fund's best
interest.

               Very truly yours,





               [Richard J. Moynihan signature]


               Richard J. Moynihan

               Director, Municipal Portfolio Management

               The Dreyfus Corporation

November 16, 1998

New York, N.Y.

* Total return includes reinvestment of dividends and any capital gains paid.

**Distribution  rate per share is based upon dividends per share paid from net
investment  income during the period (annualized) divided by the net asset value
per  share  at  the end of the period. Some income may be subject to the Federal
Alternative Minimum Tax (AMT) for certain shareholders.

***SOURCE:  LEHMAN BROTHERS: -- Unlike the Fund, the Lehman Brothers Municipal
Bond Index is an unmanaged total return performance benchmark for the long-term,
investment-grade  tax  exempt  bond  market, calculated by using municipal bonds
selected  to  be  representative  of  the municipal market overall. However, the
bonds in the Index generally are not insured.

<TABLE>

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF INVESTMENTS                         OCTOBER 31, 1998 (UNAUDITED)

                                                                                                  Principal

Long-Term Municipal Investments--91.9%                                                              Amount             Value
- ------------------------------------------                                                       ____________      ____________
<S>                                                                                            <C>               <C>
California--8.3%

Los Angeles County Metropolitan Transportation Authority, Sales Tax Revenue

   6%, 7/1/2020 (Insured; MBIA)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $    3,865,000    $    4,311,330

San Francisco City and County Airports Commission, International Airport Revenu

   6.10%, 5/1/2025 (Insured; FGIC)(Prerefunded 5/1/2004)(a)  . . . . . . . . . . . . . . .          8,240,000         9,281,618

San Joaquin Hills Transportation Corridor Agency, Toll Road Revenue, Refunding

   Zero Coupon, 1/15/2031 (Insured; MBIA)  . . . . . . . . . . . . . . . . . . . . . . . .         10,000,000         1,965,700

Colorado--1.5%

E-470 Public Highway Authority, Revenue, Refunding

   Zero Coupon, 9/1/2016 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . .          6,550,000         2,714,517

Delaware--3.6%

Delaware Economic Development Authority, Revenue:

   Gas Facilities (Delmarva Power & Light) 7.30%, 7/1/2021 (Insured; FGIC) . . . . . . . .          1,000,000         1,098,000

   Water (United Water Delaware Inc., Project) 6.20%, 6/1/2025 (Insured; AMBAC)  . . . . .          5,000,000         5,534,550

District of Columbia--2.4%

District of Columbia, Revenue, Refunding (Howard University)

   5.75%, 10/1/2013 (Insured; MBIA)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          4,130,000         4,492,490

Florida--1.3%

Florida Housing Finance Agency, SFMR, Refunding

   6.65%, 7/1/2026 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .            790,000           851,296

Lee County, Solid Waste System Revenue 7%, 10/1/2011 (Insured; MBIA) . . . . . . . . . . .          1,420,000         1,556,348

Illinois--4.8%

Chicago O'Hare International Airport, Special Facility Revenue, Refunding
(International Terminal)

   6.50%, 1/1/2018 (Insured; FGIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          1,750,000         1,798,475

Metropolitan Pier and Exposition Authority, Dedicated State Tax Revenue

   (McCormick Place Expansion Project) 6.50%, 6/15/2027 (Insured; FGIC)  . . . . . . . . .          6,375,000         7,123,234

Kentucky--6.2%

Louisville and Jefferson County Metropolitan Sewer District, Sewer and Drain
System Revenue,

  Refunding:

       6.25%, 5/15/2026 (Insured; MBIA)  . . . . . . . . . . . . . . . . . . . . . . . . .          4,200,000         4,785,186

       4.75%, 5/15/2028 (Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . .          7,000,000         6,705,160

Massachusetts--1.9%

Massachusetts Education Loan Authority, Education Loan Revenue:

   7.60%, 1/1/2003 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .            640,000           677,933

   7.65%, 1/1/2004 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .            735,000           778,960

Massachusetts Housing Finance Agency, Housing Revenue (Rental-Mortgage)

   6.50%, 7/1/2025 (Insured; AMBAC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          1,000,000         1,083,640

Massachusetts Port Authority, Special Facilities Revenue (US Air Project)

   5.75%, 9/1/2016 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          1,000,000         1,080,640

Michigan--.9%

Michigan Housing Development Authority, LOR (Greenwood Villa Project)

   6.50%, 9/15/2007 (Insured; FSA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          1,500,000         1,623,195

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF INVESTMENTS (CONTINUED)             OCTOBER 31, 1998 (UNAUDITED)

                                                                                                  Principal

Long-Term Municipal Investments (continued)                                                         Amount             Value
- ------------------------------------------                                                       ____________      ____________

Missouri--.6%

Kansas City Municipal Assistance Corp., Leasehold Revenue, Refunding (Roe
Bartle):

   5.125%, 4/15/2015 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . .     $    1,000,000    $    1,021,100

Montana--1.3%

Forsyth, PCR, Refunding (Puget Sound, Power & Light Co.)

   7.25%, 8/1/2021 (Insured; AMBAC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,250,000         2,472,525

Nevada--1.9%

Reno, HR (Saint Mary's Hospital) 7.75%, 7/1/2015 (Insured; BIGI)

   (Prerefunded 11/1/2000) (a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .          1,285,000         1,374,783

Washoe County, Gas Facilities Revenue (Sierra Pacific Power Co. Project)

   6.70%, 11/1/2032 (Insured; MBIA)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,000,000         2,209,700

New Jersey--5.7%

New Jersey Economic Development Authority, PCR (Public Service Electric & Gas
Co.)

   6.40%, 5/1/2032 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          7,600,000         8,425,740

New Jersey Health Care Facilities Financing Authority, Revenue, Refunding

   (Jersey Shore Medical Center) 6.25%, 7/1/2021 (Insured; AMBAC)  . . . . . . . . . . . .            100,000           111,363

New Jersey Housing and Mortgage Finance Agency, Revenue:

   Home Buyer 6.20%, 10/1/2025 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . .          1,995,000         2,121,463

New York--17.9%

Albany Airport Authority, Airport Revenue 5.375%, 12/15/2017 (Insured; FSA). . . . . . . .          1,250,000         1,292,250

Buffalo Municipal Water Finance Authority, Water System Revenue, Refunding

   5%, 7/1/2017 (Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .          3,795,000         3,816,442

New York State Dormitory Authority, Revenue:

   (Beth Israel Medical Center) 6%, 11/1/2015 (Insured; MBIA)  . . . . . . . . . . . . . .          8,395,000         9,232,569

   (Mount Sinai  Medical School) 5.15%, 7/1/2024 (Insured; MBIA) . . . . . . . . . . . . .          2,500,000         2,607,400

   (State University Athletic Facility) 5.25%, 7/1/2018 (Insured; MBIA)  . . . . . . . . .          2,000,000         2,055,240

   Refunding:

       (Siena College) 5.70%, 7/1/2017 (Insured; MBIA) . . . . . . . . . . . . . . . . . .          3,585,000         3,893,812

       (University of Rochester) 5%, 7/1/2027 (Insured; MBIA)  . . . . . . . . . . . . . .          1,000,000           990,160

New York State Energy, Research and Development Authority, Facilities Revenue

   (Con Edison Co.-New York, Inc.) 6.375%, 12/1/2027 (Insured; MBIA) . . . . . . . . . . .          3,000,000         3,220,950

New York State Medical Care Facilities Finance Agency, Revenue (Long-Term
Healthcare)

   6.50%, 11/1/2015 (Insured; FSA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          4,655,000         5,145,451

Saint Lawrence County Industrial Development Agency, Civic Facility Revenue

   (Lawrence University Project) 5.50% 7/1/2013(Insured; MBIA) . . . . . . . . . . . . . .          1,135,000         1,227,968

North Dakota--2.1%

Mercer County, PCR, Refunding (Montana-Dakota Utilities Co. Project)

   6.65%, 6/1/2022 (Insured; FGIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          3,500,000         3,857,035

Ohio--1.6%

Ontario Local School District, Refunding

   5%, 12/1/2023 (Insured; FSA)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .          3,000,000         2,980,770

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF INVESTMENTS (CONTINUED)             OCTOBER 31, 1998 (UNAUDITED)

                                                                                                  Principal

Long-Term Municipal Investments (continued)                                                         Amount             Value
- ------------------------------------------                                                       ____________      ____________


Pennsylvania--2.8%

Beaver County Industrial Development Authority, PCR, Refunding

   (Ohio Edison Co./Mansfield) 7%, 6/1/2021 (Insured; FGIC)  . . . . . . . . . . . . . . .     $    3,000,000    $    3,269,490

Chester County Health and Educational Facilities Authority, Health System
Revenue

   (Jefferson Health System) 5.125%, 5/15/2018 (Insured; AMBAC)  . . . . . . . . . . . . .          2,000,000         2,005,140

Rhode Island--2.6%

Rhode Island Housing and  Mortgage Finance Corp., SFMR

   9.30%, 7/1/2004 (Insured; FGIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . .             15,000            15,025

Rhode Island Port Authority and Economic Development Corp.,

   Airport Revenue 6.625%, 7/1/2024 (Insured; FSA) . . . . . . . . . . . . . . . . . . . .          4,250,000         4,778,020

Tennessee--.6%

Metropolitan Government, Nashville and Davidson County, Water and Sewer Revenue,
Refunding

   5.20%, 1/1/2013 (Insured; FGIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          1,000,000         1,065,660

Texas--3.6%

Brazos River Authority, PCR, Refunding (Texas Utilities Electric Co. Project)

   6.625%, 6/1/2022 (Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          5,500,000         6,039,110

Brownsville Housing Finance Corp., SFMR (Mortgage-Multiple Originators and
Services)

   9.625%, 12/1/2011 (Insured; FGIC) . . . . . . . . . . . . . . . . . . . . . . . . . . .            690,000           701,185

Virginia--8.2%

Danville Industrial Development Authority, HR (Danville Regional Medical Center

   5.20%,10/1/2018 (Insured; AMBAC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,000,000         2,076,980

Richmond Metropolitan Authority, Expressway Revenue, Refunding:

   5.25%, 7/15/2017 (Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,500,000         2,636,100

   5.25%, 7/15/2022 (Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,600,000         2,735,954

Virginia College Building Authority, Educational Facilities Revenue (Washington
and Lee University)

   5.25%, 1/1/2026 (Insured; MBIA) . . . . . . . . . . . . . . . . . . . . . . . . . . . .          7,500,000         7,932,225

Washington--9.2%

King County, Sewer Revenue 6.125%, 1/1/2033 (Insured; MBIA). . . . . . . . . . . . . . . .          5,000,000         5,549,150

Washington, MFMR:

   (Gilman Meadows Project) 7.40%, 1/1/2030 (Insured; FSA) . . . . . . . . . . . . . . . .          3,000,000         3,369,180

   (Mallard Cove Project 1) 7.40%, 1/1/2030 (Insured; FSA) . . . . . . . . . . . . . . . .            800,000           898,448

   (Mallard Cove Project 2) 7.40%, 1/1/2030 (Insured; FSA) . . . . . . . . . . . . . . . .          2,700,000         3,032,262

Yakima-Tieton Irrigation District, Revenue, Refunding 6.20%, 6/1/2019 (Insured; FSA) . . .          4,000,000         4,399,160

West Virginia--2.9%

West Virginia:

   4.50%, 6/1/2023(Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,525,000         2,359,234

   6.50%, 11/1/2026 (Insured; FGIC)  . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,600,000         3,138,486

                                                                                                                  _____________

TOTAL LONG-TERM MUNICIPAL INVESTMENTS (cost $159,032,195). . . . . . . . . . . . . . . . .                         $171,519,802

                                                                                                                  _____________

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF INVESTMENTS (CONTINUED)             OCTOBER 31, 1998 (UNAUDITED)

                                                                                                  Principal

Long-Term Municipal Investments (continued)                                                         Amount             Value
- ------------------------------------------                                                       ____________      ____________


Illinois--1.1%

Illinois Health Facilities Authority, Revenue, Refunding, VRDN 3.70% (Insured; MBIA) (b) .     $    2,000,000    $    2,000,000

New York--3.7%

New York City, VRDN 3.70% (Insured; AMBAC)(b). . . . . . . . . . . . . . . . . . . . . . .          4,000,000         4,000,000

New York City Municipal Water Financing Authority, Water and Sewer System
Revenue,

   VRDN 3.70% (Insured; FGIC)(b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .          3,000,000         3,000,000

Utah--1.1%

Emery County, PCR, VRDN (Pacificorp Project) 3.70% (Insured; AMBAC)(b) . . . . . . . . . .          2,000,000         2,000,000

                                                                                                                  _____________

TOTAL SHORT-TERM MUNICIPAL INVESTMENTS (cost $11,000,000). . . . . . . . . . . . . . . . .                        $  11,000,000

                                                                                                                  _____________


TOTAL INVESTMENTS (cost $170,032,195). . . . . . . . . . . . . . . . . . . . . . . . . . .              97.8%      $182,519,802

                                                                                                      _______     _____________


CASH AND RECEIVABLES (NET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               2.2%   $     4,193,282

                                                                                                      _______     _____________

NET ASSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .             100.0%      $186,713,084

                                                                                                      _______     _____________

Summary    of    Abbreviations
- -----------------------------------------------------------------------------

AMBAC       American Municipal Bond Assurance Corporation            MBIA       Municipal Bond Investors Assurance

BIGI        Bond Investors Guaranty Insurance                                      Insurance Corporation

FGIC        Financial Guaranty Insurance Company                     MFMR       Multi-Family Mortgage Revenue

FSA         Financial Security Assurance                             PCR        Pollution Control Revenue

HR          Hospital Revenue                                         SFMR       Single Family Mortgage Revenue

LOR         Limited Obligation Revenue                               VRDN       Variable Rate Demand Notes

Summary of Combined Ratings
- -----------------------------------------------------------------------------

Fitch                or            Moody's             or            Standard & Poor's              Percentage of Value

_______                            ________                          __________________            ____________________

AAA                                Aaa                               AAA                                  94.0%

F-1                                MIG1/P1                           SP1/A1                                6.0

                                                                                                        _______

                                                                                                         100.0%

                                                                                                        _______


Notes to Statement of Investments:
- -----------------------------------------------------------------------------

(a)  Bonds which are prerefunded are collateralized by U.S. Government
     securities which are held in escrow and are used to pay principal and
     interest on the municipal issue and to retire the bonds in full at the
     earliest refunding date.

(b)  Securities payable on demand. Variable interest rate--subject to periodic
     change.

(c)  At October 31, 1998, 40.5% of the Fund's net assets are insured by MBIA and
     31.4% are insured by FGIC.

                      SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>
<TABLE>
DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF ASSETS AND LIABILITIES              OCTOBER 31, 1998 (UNAUDITED)

                                                                                                     Cost             Value
                                                                                                 ____________      ____________
<S>                                                                                              <C>               <C>
ASSETS:                          Investments in securities--See Statement of Investments . .     $170,032,195      $182,519,802

                                 Cash  . . . . . . . . . . . . . . . . . . . . . . . . . .                              756,261

                                 Interest receivable . . . . . . . . . . . . . . . . . . .                            3,573,428

                                 Prepaid expenses  . . . . . . . . . . . . . . . . . . . .                               18,494

                                                                                                                  _____________

                                                                                                                    186,867,985

                                                                                                                  _____________


LIABILITIES:                     Due to The Dreyfus Corporation and affiliates . . . . . .                              117,258

                                 Due to Distributor  . . . . . . . . . . . . . . . . . . .                                3,399

                                 Accrued expenses  . . . . . . . . . . . . . . . . . . . .                               34,244

                                                                                                                  _____________

                                                                                                                        154,901

                                                                                                                  _____________


NET ASSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                         $186,713,084

                                                                                                                  _____________

                                                                                                                  _____________


REPRESENTED BY:                  Paid-in capital . . . . . . . . . . . . . . . . . . . . .                         $174,844,737

                                 Accumulated undistributed investment income--net  . . . .                               22,785

                                 Accumulated net realized gain (loss) on investments . . .                             (642,045)

                                 Accumulated net unrealized appreciation (depreciation)
                                   on investments--Note 4  . . . . . . . . . . . . . . . .                           12,487,607

                                                                                                                  _____________

NET ASSETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                         $186,713,084

                                                                                                                  _____________



SHARES OUTSTANDING

(300 MILLION SHARES OF $.01 PAR VALUE COMMON STOCK AUTHORITZED). . . . . . . . . . . . . .                           10,126,082


NET ASSET VALUE, offering and redemption price per share--Note 3(d). . . . . . . . . . . .                               $18.44

                                                                                                                       ________





                      SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>
<TABLE>
DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF OPERATIONS         SIX MONTHS ENDED OCTOBER 31, 1998 (UNAUDITED)

INVESTMENT INCOME
<S>                                                                                       <C>                     <C>
INCOME                           Interest Income . . . . . . . . . . . . . . . . .                                $  5,164,746

EXPENSES:                        Management fee--Note 3(a) . . . . . . . . . . . .        $     568,094

                                 Shareholder servicing costs--Note 3(b)  . . . . .              246,823

                                 Professional fees . . . . . . . . . . . . . . . .               25,027

                                 Registration fees . . . . . . . . . . . . . . . .               16,839

                                 Directors' fees and expenses--Note 3(c) . . . . .               14,685

                                 Custodian fees  . . . . . . . . . . . . . . . . .                9,615

                                 Prospectus and shareholders' reports--Note 3(b) .                7,793

                                 Loan commitment fees--Note 2  . . . . . . . . . .                  260

                                 Miscellaneous . . . . . . . . . . . . . . . . . .                6,638

                                                                                          _____________

                                        Total Expenses . . . . . . . . . . . . . .              895,774

                                 Less--reduction in management fee due to
                                    undertaking--Note 3(a) . . . . . . . . . . . .              (90,720)

                                                                                          _____________

                                        Net Expenses . . . . . . . . . . . . . . .                                     805,054

                                                                                                                  _____________

INVESTMENT INCOME--NET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .                                   4,359,692

REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS--Note 4:
                                 Net realized gain (loss) on investments . . . . .         $  1,215,385

                                 Net unrealized appreciation (depreciation)
                                    on investments . . . . . . . . . . . . . . . .            4,565,958

                                                                                          _____________



NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS . . . . . . . . . . . . . .                                   5,781,343

                                                                                                                  _____________

NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS . . . . . . . . . . . . . . .                                 $10,141,035

                                                                                                                  _____________


                      SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>
<TABLE>
DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

STATEMENT OF CHANGES IN NET ASSETS

                                                                                        Six Months Ended

                                                                                        October 31, 1998     Year Ended

                                                                                          (Unaudited)       April 30, 1998

                                                                                       ________________    _________________
<S>                                                                                      <C>                   <C>
OPERATIONS:


   Investment income--net  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     $    4,359,692        $   9,301,806

   Net realized gain (loss) on investments . . . . . . . . . . . . . . . . . . . . .          1,215,385            3,232,483

   Net unrealized appreciation (depreciation) on investments . . . . . . . . . . . .          4,565,958            3,408,483

                                                                                         ______________        _____________

       Net Increase (Decrease) in Net Assets Resulting from Operations . . . . . . .         10,141,035           15,942,772

                                                                                         ______________        _____________


DIVIDENDS TO SHAREHOLDERS FROM:

   Investment income--net  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        (4,336,907)          (9,301,806)

                                                                                         ______________        _____________


CAPITAL STOCK TRANSACTIONS:

   Net proceeds from shares sold . . . . . . . . . . . . . . . . . . . . . . . . . .         12,885,517           72,586,101

   Dividends reinvested  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .          2,904,067            6,094,336

   Cost of shares redeemed . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       (21,316,919)         (91,356,721)

                                                                                         ______________        _____________

       Increase (Decrease) in Net Assets from Capital Stock Transactions . . . . . .        (5,527,335)         (12,676,284)

                                                                                         ______________        _____________

          Total Increase (Decrease) in Net Assets  . . . . . . . . . . . . . . . . .            276,793          (6,035,318)


NET ASSETS:

   Beginning of Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        186,436,291          192,471,609

                                                                                         ______________        _____________

   End of Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       $186,713,084         $186,436,291

                                                                                         ______________        _____________


UNDISTRIBUTED INVESTMENT INCOME--NET . . . . . . . . . . . . . . . . . . . . . . . .   $         22,785              --

                                                                                         ______________        _____________


                                                                                             Shares                Shares

                                                                                         ______________        _____________

CAPITAL SHARE TRANSACTIONS:

   Shares sold   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .            704,449            4,071,401

   Shares issued for dividends reinvested  . . . . . . . . . . . . . . . . . . . . .            158,761              339,966

   Shares redeemed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         (1,166,946)          (5,100,142)

                                                                                          _____________         _____________

       Net Increase (Decrease) in Shares Outstanding . . . . . . . . . . . . . . . .           (303,736)            (688,775)

                                                                                         ______________        _____________










                      SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>
<TABLE>
DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

FINANCIAL HIGHLIGHTS

  Contained  below is per share operating performance data for a share of Common
Stock  outstanding,  total  investment  return, ratios to average net assets and
other  supplemental  data  for  each period indicated. This information has been
derived from the Fund's financial statements.


                                                  Six Months Ended

                                                  October 31, 1998                     Year Ended April 30,
                                                                   _____________________________________________________________

PER SHARE DATA:                                    (Unaudited)        1998         1997        1996        1995        1994
                                              ____________________   _______      _______     _______     _______      _______
<S>                                                   <C>             <C>          <C>         <C>         <C>          <C>
   Net asset value, beginning of period  . . .        $17.88          $17.31       $17.13      $17.25      $17.46       $19.23

                                                     _______         _______      _______     _______     _______      _______

   Investment Operations:

   Investment income--net  . . . . . . . . . .           .42             .85          .87         .91         .94        .1.00

   Net realized and unrealized gain (loss)
       on investments  . . . . . . . . . . . .           .56             .57          .18        (.11)       (.21)       (1.06)

                                                     _______         _______      _______     _______     _______      _______

   Total from Investment Operations  . . . . .           .98            1.42         1.05         .80         .73         (.06)

                                                     _______         _______      _______     _______     _______      _______

   Distributions:

   Dividends from investment income--net . . .         (.42)           (.85)        (.87)        (.92)       (.94)       (1.00)

   Dividends from net realized gain on investments       --              --           --           --          --         (.63)

   Dividends in excess of net realized gain
       on investments  . . . . . . . . . . . .           --              --           --           --          --         (.08)

                                                     _______         _______      _______     _______     _______      _______

   Total Distributions . . . . . . . . . . . .          (.42)           (.85)        (.87)       (.92)       (.94)       (1.71)

                                                     _______         _______      _______     _______     _______      _______

   Net asset value, end of period  . . . . . .        $18.44          $17.88       $17.31      $17.13      $17.25       $17.46

                                                     _______         _______      _______     _______     _______      _______


TOTAL INVESTMENT RETURN. . . . . . . . . . . .         10.95%(1)        8.31%        6.24%       4.58%       4.36%        (.74%)

RATIOS/SUPPLEMENTAL DATA:

   Ratio of expenses to average net assets . .           .85%(1)         .85%         .80%        .85%        .94%         .93%

   Ratio of net investment income
       to average net assets . . . . . . . . .          4.60%(1)         4.76%       5.03%       5.14%       5.49%        5.25%

   Decrease reflected in above expense ratios
       due to undertakings by the Manager  . .           .10%(1)          .10%        .17%        .09%         --           --

   Portfolio Turnover Rate . . . . . . . . . .         15.92%(2)        64.38%      93.39%      82.86%      41.19%       34.92%

   Net Assets, end of period (000's Omitted) . .    $186,713         $186,436    $192,472    $208,388    $220,398     $249,513
- -----------------------------

(1)  Annualized.

(2)  Not annualized.

                      SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

NOTES TO FINANCIAL STATEMENTS (UNAUDITED)

NOTE 1--SIGNIFICANT ACCOUNTING POLICIES:

Dreyfus Insured Municipal Bond Fund, Inc. (the "Fund") is registered under the
Investment Company Act of 1940, as amended (the "Act") as a diversified open-end
management  investment  company.  The  Fund's investment objective is to provide
investors  with as high a level of current income exempt from Federal income tax
as  is consistent with the preservation of capital. The Dreyfus Corporation (the
" Manager" ) serves  as  the  Fund's investment adviser. The Manager is a direct
subsidiary  of  Mellon  Bank,  N.A.  Premier  Mutual  Fund  Services,  Inc. (the
" Distributor" ) is  the distributor of the Fund's shares, which are sold to the
public without a sales load.

  The  Fund' s  financial  statements  are prepared in accordance with generally
accepted accounting principles which may require the use of management estimates
and assumptions. Actual results could differ from those estimates.

  (A)  PORTFOLIO  VALUATION:  Investments in securities are valued each business
day  by  an  independent  pricing  service  ("Service") approved by the Board of
Directors. Investments for which quoted bid prices are readily available and are
representative  of the bid side of the market in the judgment of the Service are
valued  at  the  mean  between the quoted bid prices (as obtained by the Service
from  dealers in such securities) and asked prices (as calculated by the Service
based  upon its evaluation of the market for such securities). Other investments
(which  constitute  a  majority of the portfolio securities) are carried at fair
value as determined by the Service, based on methods which include consideration
of:  yields  or  prices  of  municipal securities of comparable quality, coupon,
maturity  and  type;  indications  as to values from dealers; and general market
conditions.

(B) SECURITIES TRANSACTIONS AND INVESTMENT INCOME: Securities transactions are
recorded  on  a  trade  date  basis.  Realized  gain  and  loss  from securities
transactions  are  recorded  on  the  identified  cost  basis.  Interest income,
adjusted   for   amortization  of  premiums  and  original  issue  discounts  on
investments, is earned from settlement date and recognized on the accrual basis.
Securities  purchased  or sold on a when-issued or delayed-delivery basis may be
settled  a  month  or  more after the trade date. Under the terms of the custody
agreement,  the  Fund received net earnings credits of $6,813 based on available
cash  balances left on deposit. Income earned under this arrangement is included
in interest income.

  (C)  DIVIDENDS  TO  SHAREHOLDERS:  It  is  the  policy  of the Fund to declare
dividends  daily  from  investment  income-net. Such dividends are paid monthly.
Dividends  from  net  realized  capital  gain  are  normally  declared  and paid
annually, but the Fund may make distributions on a more frequent basis to comply
with  the  distribution  requirements  of  the Internal Revenue Code of 1986, as
amended (the "Code"). To the extent that net realized capital gain can be offset
by  capital loss carryovers, it is the policy of the Fund not to distribute such
gain.

  (D)  FEDERAL INCOME TAXES: It is the policy of the Fund to continue to qualify
as a regulated investment company, which can distribute tax exempt dividends, by
complying  with the applicable provisions of the Code, and to make distributions
of  income  and  net  realized  capital  gain  sufficient  to  relieve  it  from
substantially all Federal income and excise taxes.

  The  Fund  has  an  unused  capital loss carryover of approximately $1,858,000
available  for  Federal  income  tax  purposes  to be applied against future net
securities  profits,  if  any,  realized  subsequent  to  April 30, 1998. If not
applied, $1,030,000 of the carryover expires in fiscal 2004 and $828,000 expires
in fiscal 2005.

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

NOTES TO FINANCIAL STATEMENTS (UNAUDITED) (CONTINUED)

NOTE 2--BANK LINE OF CREDIT:

  The  Fund  participates  with  other  Dreyfus-managed  funds in a $600 million
redemption  credit  facility  (" Facility" ) to  be  utilized  for  temporary or
emergency  purposes,  including  the  financing  of  redemptions.  In connection
therewith, the Fund has agreed to pay commitment fees on its pro rata portion of
the  Facility.  Interest  is  charged  to  the Fund at rates based on prevailing
market  rates  in  effect  at  the  time  of borrowings. During the period ended
October 31, 1998, the Fund did not borrow under the Facility.

NOTE 3--MANAGEMENT FEE AND OTHER TRANSACTIONS WITH AFFILIATES:

  (A)  Pursuant  to  a  management agreement ("Agreement") with the Manager, the
management  fee  is computed at the annual rate of .60 of 1% of the value of the
Fund' s  average daily net assets and is payable monthly. The Agreement provides
that if in any full year the aggregate expenses of the Fund, exclusive of taxes,
brokerage,  commitment  fees, interest on borrowings and extraordinary expenses,
exceed  1 1/2% of the value of the Fund's average net assets, the Fund may
deduct from  the  payments  to  be  made  to the Manager, or the Manager will
bear such excess. However, the Manager had undertaken from May 1, 1998 through
October 31, 1998  to  reduce  the  management  fee  paid by the Fund, to the
extent that the Fund' s  aggregate  annual  expenses (exclusive of certain
expenses as described above)  exceed  an  annual  rate of .85 of 1% of the value
of the Fund's average daily  net assets. The reduction in management fee,
pursuant to the undertaking, amounted to $90,720 during the period ended October
31, 1998.

  (B)  Under  the Service Plan (the "Plan") adopted pursuant to Rule 12b-1 under
the Act, the Fund (a) reimburses the Distributor for payments to certain Service
Agents   (a   securities   dealer,   financial  institution  or  other  industry
professional)  for  distributing  the  Fund' s  shares and servicing shareholder
accounts  ("Servicing") and (b) pays the Manager, Dreyfus Service Corporation, a
wholly-owned  subsidiary  of  the  Manager,  and any affiliate of either of them
(collectively, "Dreyfus") for advertising and marketing relating to the Fund and
for  Servicing,  at  an  aggregate  annual rate of .20 of 1% of the value of the
Fund's average daily net assets. Both the Distributor and Dreyfus may pay one or
more  Service Agents a fee in respect of the Fund's shares owned by shareholders
with whom the Service Agent has a Servicing relationship or for whom the Service
Agent  is  the  dealer  or  holder  of  record. Both the Distributor and Dreyfus
determine  the  amounts, if any, to be paid to Service Agents under the Plan and
the  basis  on which such payments are made. The fees payable under the Plan are
payable  without  regard  to  actual expenses incurred. The Plan also separately
provides  for the Fund to bear the costs of preparing, printing and distributing
certain  of the Fund's prospectuses and statements of additional information and
costs  associated  with  implementing  and operating the Plan, not to exceed the
greater  of  $100,000 or .005 of 1% of the value of the Fund's average daily net
assets  for  any full fiscal year. During the period ended October 31, 1998, the
Fund was charged $191,959 pursuant to the Plan.

  The  Fund compensates Dreyfus Transfer, Inc., a wholly-owned subsidiary of the
Manager,   under  a  transfer  agency  agreement  for  providing  personnel  and
facilities  to  perform transfer agency services for the Fund. During the period
ended  October  31,  1998, the Fund was charged $39,190 pursuant to the transfer
agency agreement.

  (C)  Each  director  who  is  not an "affiliated person" as defined in the Act
receives from the Fund an annual fee of $2,500 and an attendance fee of $250 per
meeting.  The  Chairman  of  the  Board  receives  an  additional  25%  of  such
compensation.

DREYFUS INSURED MUNICIPAL BOND FUND, INC.
- -----------------------------------------------------------------------------

NOTES TO FINANCIAL STATEMENTS (UNAUDITED) (CONTINUED)

  (D)  A  .10%  redemption  fee  is  charged and retained by the Fund on certain
redemptions  of  Fund  shares  (including redemption through the use of the Fund
Exchanges  service)  where  the  redemption or exchange occurs less than fifteen
days  following  the date of issuance. During the period ended October 31, 1998,
redemption fees amounted to $6,413.

NOTE 4--SECURITIES TRANSACTIONS:

  The  aggregate  amount  of  purchases  and  sales  of  investment  securities,
excluding  short-term  securities,  during  the  period  ended  October 31, 1998
amounted to $28,911,050 and $47,238,641, respectively.

  At  October  31,  1998, accumulated net unrealized appreciation on investments
was  $12,487,607,  consisting  of  $12,505,337 gross unrealized appreciation and
$17,730 gross unrealized depreciation.

  At  October  31, 1998, the cost of investments for Federal income tax purposes
was substantially the same as the cost for financial reporting purposes (see the
Statement of Investments).
                                   (reg.tm)

                                   (reg.tm)

DREYFUS INSURED MUNICIPAL

BOND FUND, INC.

200 Park Avenue

New York, NY 10166

MANAGER

The Dreyfus Corporation

200 Park Avenue

New York, NY 10166

CUSTODIAN

The Bank of New York

90 Washington Street

New York, NY 10286

TRANSFER AGENT &

DIVIDEND DISBURSING AGENT

Dreyfus Transfer, Inc.

P.O. Box 9671

Providence, RI 02940










Printed in U.S.A.                                             306SA9810

Insured

Municipal

Bond Fund, Inc.

Semi-Annual

Report

October 31, 1998









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