THE CANADIAN ENTOMOLOGIST. 181 



tuberosity, but suddenly bent inward at this point; the middle costa 

 passes through the tuberosity, is almost obliterated except at tip, and 

 very nearly reaches the apical margin ; the inner costa distinct only near 

 the tip, also nearly attaining the apex ; tuberosity high. Body beneath 

 shining, scabro-punctate. hairy, the hairs longer and paler on the 

 metathorax sclerites, those on the last two abdominal segments and on 

 the hind margin of the one preceding, orange. Length from anterior 

 margin of thorax to apex of elytra, 1 1 mm. 



The type is a male from the vicinity of the Argentine Pass, near 

 Georgetown, Colorado, having been taken at an altitude of over 12,000 

 feet. The anterior tarsi are moderately broadly dilated, while the hind 

 tibiae are straight and without hook at tip. It may possibly be a 

 subspecies of tritnberculata, to which it is evidently more closely allied 

 than to any other species in our fauna. 



Colon Liebecki, n. sp. — Oval, more pointed behind, moderately 

 convex, brown, elytra and under surface paler, legs and base of antennae 

 rufous ; pubescence yellowish, not obscuring the surface colour. Head 

 cribrately punctured, each puncture bearing a hair. Antennal club 

 five-jointed, brownish, the last four joints very broad ; scape rufous. 

 Prothorax broadest a little in front of the base, narrowed to apex, sides 

 arcuate, hind angles quite broadly rounded, surface finely punctured, 

 pubescent. Elytra a trifle narrower than the thorax, broadest in front of 

 the middle, gently narrowed behind, the sides slightly arcuate, punctuation 

 about as on thorax, sutural stria entire but faint. Under surface of body 

 moderately punctured, pubescent. Length, i.S mm. 



Fie;. .). 



In the male, the anterior tibiae are arcuate, the outline of the inner 



« 



edge might almost be called sub-angulate (see figure 9), the front tarsi are 

 moderately dilated, the middle and hind tibiae straight, the posterior 

 femora with a small tooth near the middle ; in the female the tarsi are not 

 dilated, the tibia; straight and the hind femora without tooth. 



Collected at Breckenridge, Colorado, in July. This species seems 

 most closely related to C. dentattim, Lee, but is distinct by the male 

 characters. 



