408 



ENTOMOLOGICAL NEWS. 



[Nov., '16 



9. Prosternum more coarsely and more densely punctured; anterior 

 tibia moderately arcuate, gradually wider to tip, the middle less arcuate 

 and gradually wider to apex, the posterior straight ; last ventral longer 

 than in male and with a shallow semi-circular emargination; last dorsal 

 more punctuate than in the male and with a small apical notch ; the 

 sides of the ventral segments, the tibia, and the front quite cupreous. 



This species is probably most closely related to C. carini- 

 pennis Lee., but it has a decidedly different facies, being less 

 elongate and with the elevated sculpturings of the elytra much 



Outline drawings of anterior tibia of males of Chrysobothris : i^pseudotsugae ; 

 2, carinipennis ; 3, laricis. 



broader and coarser. In C. carinipennis Lee. the tibial dilata- 

 tion in the male is always distinctly longer than broad, at least 

 twice, while in this species it is somewhat less than twice. 



My series of twenty-five mounted specimens represents ma- 

 terial mainly collected by myself at Carrville, Trinity County, 

 California, June 30, 1913, on Douglas fir, Pseudotsuga ta.vi- 

 folia Britt, and from near Fallen Leaf Lake, Lake Tahoe, 

 California, June 2, 1915, on white fir, Abies concolor Lindl. 

 & Gord. I have also seen a fair series in the collection of Mr. 

 Ralph Hopping. The species is apparently moderately abun- 

 dant in Northern California and the Northern Sierras about 

 the trees mentioned, and, no doubt, extends much farther 

 north. It apparently is one of the species which replaces C. 

 carinipennis Lee. west of the Cascades and Sierras, the other 

 seeming to be restricted to the Rockies and the northern por- 

 tion of the Great Basin. Most of the specimens examined 

 are quite constant as to size and their characters, but they 



