H. C. FALL. 153 



Hub. — Colorado (Garland) ; Alberta (Banff Springs). Two ex- 

 amples of this interesting species have been sent by. Mr. Schwarz. 

 It should be easily recognized. 



C valida sp. nov. — Brownish testaceous, prothorax sometimes darker; sur- 

 face shining, the prothorax finely alutaceous; form moderately elongate and con- 

 vex: pubescence fine, short, sparse and decumbent throughout. Head four-fifths 

 as wide as the prothorax, strongly, rather closely punctate; eyes prominent. 

 tempora parallel and about one-third as long as the eye. Antennae about reaching 

 the hind margin of the prothorax, all joints longer than wide. Prothorax wider 

 than long, widest before the middle, sides rather strongly rounded in front, and 

 arcuately convergent behind ; hind angles obtuse, serrulation of margin feeble; 

 surface with moderate punctures, which are distant on the average by their own 

 diameters; basal impression nearly wanting. Elytra oblong, elongate, a little 

 broader posteriorly, sides feebly rounded, apex very obtusely rounded ; stria' not 

 impressed, their punctures rather fine, those of the intervals still finer. Proster- 

 num with very few widely scattered punctures; metasternum sparsely but rather 

 coarsely punctate at sides, nearly smooth at middle; abdomen very finely and 

 sparsely punctulate throughout, the first ventral not much more distinctly so 

 than the following segments. Middle coxae separated by scarcely one-sixth their 

 own width. Metasternum subequal in length to the first ventral at sides, dis- 

 tinctly shorter than the first ventral along the median line. Femora moderately 

 stout. (PI. IV, fig. 42). 



JfaZe.— Front and middle tibiae sinuate and mucronate within at tip ; last ven- 

 tral short, very broadly sinuately truncate at apex ; a sixth segment visible in 

 all the specimens examined. 



Female.— Tibiae simple; last ventral longer, with a small punctiform fovea at 

 the middle of the apical margin ; sixth ventral not exposed. 



Length 2.3-2.6 mm. 



Hab.—N. Illinois; Montana (Bear Paw Mt.— Hubbard and 

 Schwarz); Colorado (Garland— Hubbard and Schwarz) ; British 

 Columbia — Horn collection. 



This is— next to jmbescens — our largest species. Its size, very 

 sparse and fine pubescence, non-foveate pronotum, short metaster- 

 num and elongate joints of antennal club, form a group of charac- 

 ters which make its recognition perfectly simple. 



€. iuopia sp. nov- Eufotestaceous, convex, pubescence short and much 

 inclined, nearly uniform throughout. Head sparsely, finely punctate; eyes 

 small and less prominent than usual, the tempora a little less prominent than the 

 eyes and moderate in length. Antennae nearly reaching the hind angles of the 

 prothorax, joints seven and eight fully as wide as long, the first two joints of the 

 club distinctly transverse. Prothorax one-fourth wider than long and widest 

 before the middle, base a little narrower than the apex, sides moderately rounded, 

 margin serrulate; surface more strongly punctate than the head, but not closely 

 so; posterior fovea distinct, but small and shallow. Elytra one-half wider 

 than the prothorax, elongate ovate, widest at the middle, humeri broadly 

 rounded; striae vaguely impressed, punctures moderate, those of the intervals 



TRANS. AM. ENT. SOC. XXVI. (20 J DECEMBER, 1899. 



