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



tke collections of the Academy, and considerable routine work has been 

 done in the mounting and labelling not only of accumulated material 

 already in the collection but also of that collected by the curator in his 

 field work and a portion of that received by gift from others, in which 

 work the department has received efficient help from Miss Alma Krauss 

 of Oakland who has acted as departmental assistant at intervals during 

 the past year. 



Accessions to the department of Entomology for the year number 23,696 

 specimens, of which 6518 were obtained by the curator in his field work 

 and 17,178 were received by gift from various friends of the institution. 

 This presented material includes several collections worthy of special men- 

 tion. Most valuable of all is the series of 7662 insects, mostly western 

 Lepidoptera, presented by Mr. F. X. Williams formerly of San Francisco 

 but now of Honolulu. The butterflies and moths in this collection were 

 largely determined by specialists and it is. with perhaps a single exception, 

 the most valuable collection of Lepidoptera on the coast. Another fine 

 collection of butterflies and moths, numbering 1737 specimens mostly de- 

 termined by specialists, was presented by Mr. E. J. Newcomer of Palo Alto. 

 Other notable additions to the department are a collection of about 500 

 microscopic slides of Japanese plant-lice, containing a considerable 

 number of types, determined and presented by Prof. E. O. Essig of the 

 University of California; a collection of about 2400 California He- 

 miptera accumulated and presented by Mr. W. M. GifYard of Honolulu; 

 about 1700 insects presented by Dr. Frank C. Clark of Los Angeles; 

 and nearly 500 beetles received from Dr. Frank Daggett of the Los 

 Angeles Museum of History, Science and Art. 



In the line of publications the curator has to report the completion of 

 his Catalogue of the Hemiptera of America North of Mexico, a work of 

 over 900 pages issued by the University of California as one of their series 

 of semi-centennial publications, and a report on the collection of California 

 Hemiptera made by Mr. Walter M. Giflfard already mentioned. This 

 report includes the descriptions of 50 new forms the types of which have 

 been placed in the collections of the Academy. 



The field work of the curator during the past year included one week 

 at Bradley and Bryson in Monterey and San Luis Obispo counties, and 

 four weeks in southern California where work was done at Coachella, 

 Palm Springs and Colton, and at San Jacinto, Soboba Springs, and Keen 

 Camp in the San Jacinto Mountains. In addition, single days were spent 

 at Los Angeles, on Mt. Wilson, and Mt. Diablo, and at a few localities 

 about San Francisco Bay. 



Probably the most important work demanding attention in this depart- 

 ment for the coming year is the classification and arrangement of the col- 

 lection of butterflies and moths, of which the Academy now has a really 

 fine series. The basis of the Academy's collection in this order will be 

 the Williams material already mentioned. Determinations in the other 

 insect orders will also be pushed as rapidly as possible, for not until this 

 material is worked up can our collections be made available to the sys- 

 tematists of this country, or in the preparation of ecological and systematic 

 groups for public exhibition. 



