8 ENTOMOLOGICAL NEWS. [Feb., 718 
in 
in the Middle and Southern Sierras and is there generally 
found in company with C. monticola Fall, as is the other with 
it in the more northern parts of the State. 
Type male and female from Donner Lake, Placer County, 
California, July 5 and 6, 1916, in my own collection; para- 
types deposited in United States National Museum, Academy 
of Natural Sciences of Philadelphia, and California Academy 
of Sciences. The species is named in honor of my good 
triend,; Mink. Ball: 
Chrysobothris laricis Van Dyke. 
In a small series of specimens of Chrysobothris received 
from Mr. G. R. Pilate and collected by him in the Tuolumne 
Meadows of the Yosemite National Park, July 11, 1916, I 
found five females and one male of the above-named species. 
These specimens all differ slightly from the typical phase 
found in Eastern Oregon, in being more cupreous and bril- 
liantly metallic, by having the transverse punctate areas of 
the elytra more definitely defined, the sutural elevation more 
widely explanate near the apex, and the dilated portion of 
the anterior tibia in the male less broad though of the same 
type. These differences, however, are simply differences in 
degree and show that the species, like all of its relatives, is 
variable. In this more southern area it also most likely breeds 
in the lodge-pole pine, the dominant tree in the region. The 
western larch does not extend into California. 
Chrysobothris exesa Lec. 
Within the last few years I have seen several specimens of 
the above-named beetle that were taken in California, one 
taken in 1912, in Imperial County, by J. C. Bridwell and the 
others taken at Palm Springs, Riverside County, in April, 
1917, by G. R. Pilate. These latter were taken on mesquite, 
Prosopis juliflora D. C., making the sixth species of the genus 
that I know of that lives on this tree, the others being: C. 
octocola Lec., C. debilis Lec., C. mali Horn, C. merkeliti Horn, 
and C. gemmata Lec. The last, however, has not been re- 
corded from California. 
