BIBLIOGRAPHY OF T.\XONOMIC COLEOPTEROLOGY TO' 



JANUARY 1, 1919. 



The following pages are intended to assist in finding the citations 

 that follow the names of species, genera, etc., in the catalogue. For 

 example, after the name of the genus Amblycheila appears "Say 23-139." 

 Turning to "Say" in bibliography, opposite the figure 23 in the left 

 hand column, is "Desc. . . . Exp. to Rocky iVIts. < " (meaning published 

 in) " Journ. Ac. N. S. PhUa., Ill, 1823, pp. 139-216." This is the paper 

 in which the description was printed — the second figure in the citation 

 gives the page. This method of giving citations may necessitate looking 

 at two or more papers printed in the same year, but usually the pagina- 

 tion (Say's other paper in 1823, for instance, had no page 139), or the 

 subject of the paper, wUl tell which to use. The title of the paper is 

 often abbreviated but sufficient is always given to show its subject. 



There may be some difficulty where the date of publication is un- 

 certain, as is frequently the case with some of the older papers and books, 

 and different writers have cited them under different dates; but this 

 can be surmoimted without nuich delay. A large number of such cita- 

 tions have been corrected from the original but the books have not 

 always been accessible. There may also be some difficulty from separ- 

 ates or reprints having an mdependent pagination, which in some cases 

 may have been inadvertently cited ; this also has been corrected as far 

 as possible, but not entirely, as in citations from Chaudoir's paper of 1868. 



An effort has been made to make the bibliography complete, which 

 has been reasonablj^ successful as far as papers describing species are 

 concerned, and other papers written by some American authors; but 

 I fear much stUl remains to be added of the work of foreign authors. 

 The final revision of the galley proof by Mr. Sherman has added many 

 items and corrections. 



I am under heavy obUgations to Mr. .Andrew J. Mutchler, of the 

 American Museum of Natm-al History, for continual assistance in pre- 

 paring this bibliography. His knowledge of the great collection of books 

 in that Museum is remarkable, and is matched by the kindly patience 

 with which his knowledge is made serviceable. I am glad to gratefully 

 acknowledge his help. 



C. W. Leng. 



