Vol. X] EVERMANN— DIRECTOR'S REPORT FOR J920 139 



Carex have been sent to Kenneth M. Mackenzie, the authority at the New 

 York Botanical Garden. 



Continually throughout the year, the Curator has given informal talks 

 on botanical subjects to various clubs in San Francisco and other places in 

 order to educate the public in the love of nature, the knowledge of our 

 flora and the necessity of protecting our native vegetation from wanton 

 destruction. 



The weekly class of the gardeners of the park is held in the evening at 

 the herbarium. One of the members, Mr. Lewis Allen, has donated some 

 fine photographs showing particular species of trees and shrubs in the 

 park and all the members are most enthusiastic in bringing to the Academy 

 all the new plants that are coming into flower or fruit. The collection of 

 exotics raised in California out of doors that is gradually being accumu- 

 lated in the herbarium of the Academy is one of its most important fea- 

 tures and destined to make this herbarium the chief place of reference for 

 the determination of exotics throughout the state. 



Alice Eastwood, Curator. 



Department of Entomology 



As during the preceding three years the significant work done in the 

 department of entomology in 1920 was the accumulation and classification 

 of the insects of the western United States. Some interesting exotic 

 material has been secured, of special note being a collection of 3570 moths 

 from the Hawaiian Islands and 1500 beetles from the Amazon Valley. In 

 our local fauna most advance has been made in the Lepidoptera, Diptera 

 and Hemiptera. In the Lepidoptera large additions have been made to the 

 collection of night-flying moths, and, witlf the exception of the smaller 

 forms or micro-lepidoptera, most of our species have been determined 

 and several of the families rearranged. The Geometridae, especially, make 

 an excellent showing with nearly 300 species, mostly from the west coast 

 states. Determinations in this family have been made for us by Mr. W. S. 

 Wright of San Diego and Mr. E. H. Blackmore of Victoria, B. C, both 

 excellent authorities on these delicate and often beautiful "angle-wing" 

 moths. Mr. E. A. Dodge of Santa Cruz and Mr. S. E. Cassino, of Salem, 

 Mass., have given us many interesting forms of the genus Catocala, a 

 group of showy moths with red or yellow underwings, of which the 

 Academy now has 76 species. In the Diptera, or two-winged flies, much 

 advance has been made. Mr. F. R. Cole, now at Stanford University, has 

 been appointed associate curator in this order of insects and has done 

 much to improve our collection by the determination and arrangement 

 of our material. In this order the Academy collection now numbers 12,167 

 specimens, representing 876 named species. At least nine-tenths of this 

 material has been added during the past four years. During the year the 

 curator has devoted considerable time to systematic work on the order 

 Hemiptera, or true bugs, and our collection in this order is now in very 

 good condition. Of these insects we now have 15,472 specimens, repre- 



