Vol. xxix] ENTOMOLOGICAL NEWS. 57 
ment semi-circularly emarginate, the last dorsal moderately punctate 
and with a triangular emargination at tip. 
@. Prosternum more coarsely and sparsely 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 apical emargination; last dorsal more 
grossly and closely punctate than in male and with a small apical notch; 
the head, sternum and femora with more of a purplish lustre; size 
slightly larger than male, length 12 mm. and breadth 5 mm 
This species has the facies of C. carina Horn and is in fact 
most closely related to it, though it is also sometimes confused 
with C. monticola Fall. It differs from C. caurina Horn in 
being more shining and in having the elytra elevations more 
flattened, the sutural costa less definitely explanate towards the 
apex, the clypeal emargination less acute, and in not having 
the apical dilatation of the anterior tibia in the male suddenly 
constricted at apex. From C. monticola Fall it can be told 
by being generally smaller, more shining, by having the elytral 
elevations flatter, the prosternal lobe much less distinct, the 
upper margin of the eyes less close together, the dilatation of 
the anterior tibia in the male not as broad nor evenly rounded 
off towards the apex, and by having the space between the 
suture and the sutural costae more or less checkered by alter- 
nate callosities and punctured areas, a feature which it some- 
times shares with C. caurina Horn and which, though super- 
ficial, is quite characteristic. 
A series of eighty-one specimens has been examined and 
from the following localities, all in California: Independence 
Lake, Nevada County, July 12-18, 1916; Donner Lake, Placer 
County, July 3-8, 1916; Tahoe Tavern, Lake Tahoe, July 21, 
1916, all collected by R. T. Garnett; Tuolumne Meadows, 
Yosemite National Park, July 18 and 19, 1916, by G. R. Pilate, 
and Forest Hill, Placer County, April, 1898, by myself. The 
major portion were secured by Mr. Garnett at Donner Lake 
on yellow pine, Pinus ponderosa Dougl., and at Independence 
Lake on Jeffrey pine, P. jeffreyi Vasey. At the same time 
were also collected one hundred and eighty specimens of typi- 
cal C. caurina Horn and several typical C. monticola Fall. 
This species most likely somewhat replaces C. caurina Horn 
