Vol. XI] EVERMANN— DIRECTOR'S REPORT FOR 1922 tfj 



The field work of the curator in 1922 was largely done in Utah from June 

 25 to July 25. The selection of that locality for work enabled him to make 

 arrangements for the meeting of the entomologists, held in connection with the 

 annual meeting of the Pacific Division of the American Association for the 

 Advancement of Science at Salt Lake City, and to secure a very fair repre- 

 sentation of the insects of eastern and northern Utah, a region scarcely repre- 

 sented in the Academy's collection of insects. Through this work in Utah 

 6,000 specimens were added to the Academy collection, a very large proportion 

 being of species unrepresented in the Academy. 



Three shorter trips were made during the summer. One to Sacramento and 

 Chico in April, adding 976 specimens; one of five days to Lake County in 

 May, through the kindness of Dr. Hanna, adding 1265 specimens; and one of 

 two days in November, to Giant Forest, adding 171 specimens. The latter 

 trip was undertaken for the purpose of securing a sample of infested wood 

 from a portion of a fallen Big Tree (Sequoia gigantea) immediately adjoining 

 the section presented to the Academy by Hon. J. D. Grant and Col. J. R. White. 

 This tree had been struck by lightning 1200 years ago and had then become 

 infested by the larvae of a flat-headed borer. The covering of this infested 

 wood by the growth of the tree hermetically sealed the work of the beetles and 

 any dead insects remaining in the galleries, it was surmised, would still be 

 in as good condition as when so sealed. The examination of the material 

 brought home justified that prediction and resulted in the finding of two 

 fairly perfect specimens of the beetle which proved to be a green buprestid, 

 Trachykele opulenta Fall, and to differ in no way from specimens now living 

 on the same trees in the same forest. This: was an exceptional opportunity 

 to compare a beetle now living with a specimen of the same species that had 

 been preserved for 1200 years. 



Accessions to the Department of Entomology during 1922 number 21,419 

 specimens. Of these 8,823 were taken by the curator in his- field work and 

 week-end trips about San Francisco. Of the balance, 3780 specimens, collected 

 in Arizona, New Mexico and Texas by Mr. C. D. Duncan and 700 taken at 

 Needles, Calif., by Mr. J. A. Kusche, were purchased. 1138 were taken by 

 Dr. G. D. Hanna and Mr. J. R. Slevin on an expedition, made through the 

 courtesy of the Mexican Government, to Gaudalupe Island and the islands off 

 the western coast of Lower California. Many valuable donations were re- 

 ceived during the year, among which may be mentioned the following: From 

 Dr. E. C. Van Dyke, 3036 specimens, mostly from Eastern Oregon, a region 

 scarcely represented in our collection; from C. L. Fox, 1510 specimens, largely 

 from Modoc County, California; from Dr. F. E. Blaisdell, 738, including a 

 good series of spiders from Mt. Herman, Santa Cruz County, California; 

 from Mr. C. T. Dodds, 1700 insects, mostly from Sinaloa, Mexico, and con- 

 stituting a most valuable addition to our collection of insects from that 

 country; from J. Preston Clark of Boston, 274 insects from Mazatlan, Mexico; 

 from W. C. Van Heurn of Buitenzorg, Java, 384 insects from that vicinity; 

 from L. S. Slevin, 550 specimens from Monterey County, California; from 

 Frank R. Mason of Philadelphia, 145 insects from Africa; from J. O. Martin, 

 754 specimens, mostly from Lassen County, California; from B. C. Marshall, 

 150 beetles from Lawrence County, Arkansas; from A. C. Kinsey, 322 oak 



