140 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



senting 744 named species, with portions of two families yet to be worked 

 up. As one result of his systematic work on the Hemiptera the curator 

 has prepared descriptions of SO new species and one new genus which are 

 awaiting more favorable conditions for publication. Academy material in 

 the order Orthoptera, which includes the grasshoppers, crickets and their 

 relatives, has been determined by Mr. Morgan Hebard of Philadelphia, 

 who also has added many eastern forms to our collection. Unfortunately, 

 the lack of cabinet boxes precludes the possibility of arranging these 

 interesting insects this year. Large additions have been made to the col- 

 lection of Coleoptera, or bettles, but the complete rearrangement of these 

 insects has awaited the publication of the new Leng Catalogue of Coleop- 

 tera. 



Accessions to the Academy's collection of insects during the year 1920 

 number 24,861 specimens to which must be added 3,146 specimens in the 

 Stretch collection, transferred as a permanent loan or deposit from the 

 University of California, making a total of 28,007 additions for the year. 

 Of this number, 9,525 were received as gifts from friends of the Academy, 

 5,062 were obtained by purchase, 3,146 as a permanent loan and 10,274 

 were added through field work by the curator. The mounting and labelling 

 of this mass of material has consumed much of the time of the curator, 

 although he was fortunate in having the help of Miss Helen Sanford for 

 four months and of Mr. J. O. Martin for one month. Some of the prin- 

 cipal gifts to this department received during the year were : from Mr. 

 W. M. Giffard of Honolulu, 485 aculeate Hymenoptera from the Sierras; 

 from Mr. Morgan Hebard of Philadelphia, 378 Orthoptera; from Mr. L. 

 R. Reynolds, 138 Hemiptera from Mexico; from Maj. Chapman Grant of 

 Oklahoma City, 150 insects ; from Mr. E. A. Dodge, 423 moths ; from Mr. 

 C. L. Fox, 991 insects, largely from Siskiyou County, California; from 

 Dr. E. C. Van Dyke 1717, mostly from the state of Washington; from 

 Mr. J. E. Law, 450 from Arizona ; and from Dr. G. Dallas Hanna, 2441 

 specimens from the Pribilof Islands, taken by him last summer, and per- 

 haps the largest collection of insects ever taken on these islands at one 

 time. Other valuable material has been received from Dr. F. E. Blaisdell, 

 Mr. J. R. Leach, Dr. J. A. Comstock, Mr. J. O. Martin, Mr. S. E. Cassino, 

 Mrs. E. P. Van Duzee, Mrs. H. E. Ricksecker, Mr. L. S. Slevin, Mr. J. R. 

 Slevin, Mr. F. X. Williams, Mr. C. Howard Curran, Dr. R. Ottolengui and 

 Mr. B. G. Thompson. 



The field work of the curator during 1920 consisted of a trip to Half 

 Moon Bay, April 12 to 13; a trip by automobile to San Diego. April 19 to 

 28, as guest of Mr. W. M. Giff ard ; one to Bryson, Monterey County, May 

 16 to 23; one to Sacramento, June 2 to 3, as guest of Mr. Giffard ; a trip 

 to Seattle and Forks, Washington and Vancouver Island, B. C, June 14 

 to July 14, and one to Santa Cruz, November 3 to 4, as guest of Mr. E. A. 

 Dodge. In addition several short Sunday trips to nearby points have been 

 taken and many evenings have been spent collecting moths at light about 

 store windows in the city ; and, thanks to the kindness of Miss Alice East- 

 wood, the curator was able to make use of her cottage on the slopes of Mt. 

 Tamalpais for night collecting of moths during the whole month of March. 



