448 WILLIAM G. DIETZ, ]\f.D. 



jecting more than the length of the preceding joint, claws small, simple. Length 

 2.0 mm. : 0.08 inch. 



Hab. — Nevada. 



A female specimen in iNIr. Ulke's coll. It bears the label " C. 

 convexicollis Lee," to which, indeed, it bears a close resemblancef 

 the prothorax, however, is less stongly rounded on the sides and the 

 claws are simple. 



C. albopilosiilus u. sp. — Oblong oval, pitchy black, underside not densely 

 clothed with elongate with scales, above very sparsely clothed with long, suberect, 

 white, hair-like scales. Beak long and cylindrical, strongly curved, glabrous, 

 remotely punctulate in its apical half, striate from base to middle, antennae slen- 

 der, inserted a Irttle before the middle, first joint of funicle elongate, a little 

 robust, joints 2-4 about equal, longer than wide, outer three joints transverse, 

 gradually wider, club rather large, ovoidal, pointed. Head closely punctured, 

 pubescent, front flattened with concentric rows of punctures; prothorax a little 

 wider than long, two-fifths wider at the base than at the apes, widest before the 

 middle, strongly rounded on the sides and deeply constricted behind the apical 

 margin, a narrow impressed line before the basal margin, giving a somewhat 

 constricted appearance, broadly impressed in front, lateral tubercles rather large, 

 prominent, acute, a row of small, acute granules extending from the lateral tu- 

 bercles towards the median line and a few small granules exterior to the tuber- 

 cles, an acute tubercle each side of the dorsal channel, the latter subinterrupted 

 before the middle, impressed in the form of a round, deep fovea behind the apical 

 margin, the latter strongly elevated, entire, ocular lobes nearly obsolete, base 

 feebly emargiuate each side; scutel evident, glabrous. Elytra one-fourtli wider 

 at the base than the prothorax, subquadrate, a trifle longer than wide, finely 

 striate and punctured, punctures rather small, interspaces wide, somewhat shin- 

 ing, each with a row of acute granules which become larger and tuberculiform 

 towards the declivity, a short, ill-defined line of white scales behind the scutel ; 

 femora clavate. tibiaj subparallel, a little wider towards the apex, tarsi slender, 

 third joint "broadly bilobed, fourth long and slender, projecting decidedly more 

 than the length of the third joint, claws simple, rather long and slender, widely 

 divergent. Length 1.75 mm. ; 0.07 inch. 



Hab. — Los Angeles, Cal, 



A female specimen in the National Museum coll. A very distinct 

 species ; its nearest ally is perdmili^, from which it differs by its 

 smaller size, long and sparse pubescence, obsolete prothoracic lobes 

 and the row of acute granules on the prothorax ; the granules on 

 the elytral interspaces are larger. 



septentrionis group. 



The species belonging to this grouj) are all small in size and are 

 readily distinguished from those of the preceding groups by the 6- 

 jointed funicle of the antennae, the unarmed femora and the simple 

 claws; joints 1-3 of the antennal funicle elongate, the outer three 



