Number 2 7lLi^3. jnN21 ^9^7 June 16. 1957 A LIST OF THE BEETLES OP SM DIEGO COUKTY, CAligoMIA By IM MOORE San Diego Society of Natxixal History INTRODUCTION The following is a list of the Coleoptera known to occur in San Diego County, California. The number of forms included, 1649 species and subspecies, I am certain can be greatly increased by more extensive collecting; but, however incomplete it may be, it is hoped that this list will be an aid to collectors in this region. For this rea-son I have given exact localities, dates of capture, and some ecological data. As long ago as 1874 a paper on the Coleoptera of San Diego County was written by Mr. 0. N. Sanford, first treasurer of the San Diego Society of Natural History, and read before the Society on November 30 of that year. In-stallments were later published in the San Diego Daily Union of December 2 and 30, 1874, and January 20, 1875. The only other studies of San Diego County beetles to be published as such are the notes on certain families by Dr. P. E. Blaisdell, which appeared in "Zoe," Vol. 3, Nos. 1 to 4, 1892-1893. Por convenience, I have adopted the terminology of the Lengl "Catalogue" and its supplements; and the ntun-bers in parentheses following the names of species are those of the Leng list. All bibliographical references up to and including the year 1932 are to be found in Leng; subsequent references may be located through the Entomological Litera-ture Department of the "Entomological News." iLeng (1920) "Catalogue of the Coleoptera of America, North of Mexico." Leng and Lfiitchler (1927) "Sup-plement 1919 to 1924 (inclusive) ." Leng and Matchler (1933) "Second and Third Supplements 1925 to 193E (inclu-sive) -." Pabl. , John D. Sherman, Jr., Mount Vernon, N. Y. (1)