Vol. X] EVERMANN— DIRECTOR'S REPORT FOR 1920 141 



This department has received assistance in the determination of material 

 from a number of specialists besides those already mentioned and has 

 rendered assistance to others, principally by the determination of Hemip- 

 tera. The curator, during the past year, as a part of the work of his 

 department, has been in more or less regular correspondence with over 

 125 individuals, mostly workers in the science of entomology. 



But one paper by the curator has been published during 1920. This 

 was issued as Vol. 9, No. 13, of the Proceedings of the Academy and 

 contains descriptions of 28 new species of North American Hemiptera. 

 Several later papers await opportunity for publication. 



It is expected that the energies and resources of this department for the 

 coming year largely will be absorbed by the proposed Academy expedition 

 to Lower California and in the preparation and study of the material taken. 



E. P. Van Duzee, Curator. 



Department of Herpetology 



The Department of Herpetology during the year 1920 progressed satis- 

 factorily, and the work accomplished compares favorably with that of 

 previous years. 



At the beginning of the year 1920 the Academy's collection of reptiles 

 and amphibians numbered 40,038 specimens. There have been added dur- 

 ing the year 1,466 specimens, so that the collection has grown to more 

 than 41,000 specimens. 



The number of specimens added during each of the past six years has 

 been about as follows : 



1915 800 specimens 



1916 1500 



1917 ^ 1600 



1918 1724 



1919 2666 



1920 1466 



Gifts of specimens during the year have been received as follows : 



From Patrick H. McGee 3 specimens 



" Gme de la Motte 1 specimen 



" Mrs. J. E. Wilkins 2 specimens 



" Dr. Barton W. Evermann 1 specimen 



H. H Hunt 



" Miss Marjorie D. Cole 



" H. G. Huges 



Ralph Borden 



" Dr. E. C. Van Dyke 13 specimens 



" J. D. Flett 



" Fred Maag 



" J. R. Slonaker 



John O. Snyder 



" F. X. Williams 



