94 THOS. h. CASEY. 



and elytra paler. Head broad and large ; eyes small, not prominent, and in ad- 

 vance of posterior angles their own length. Prothorax narrower than the head, 

 rather strongly narrowed behind ; anterior and posterior angles well developed ; 

 sides but slightly arcuate; lateral striae distinct. Scutellum very small and trans- 

 verse. Elytra much narrower than prothorax, slightly longer than head and pro- 

 thorax together, entire and obtusely rounded behind ; sides parallel and straight. 

 Abdominal segments very short, second, third and fourth equal, fifth almost twice 

 the length of the fourth ; antennae as long as the prothorax and elytra together; 

 first joint moderate, first three decreasing gradually in size, fourth a little more 

 elongated than the third; joints five to Jen equal in length and width, eleventh 

 equal in width but much longer ; pubescence dense toward the tip. Length 1 .7 mm. 

 Feviale. — Head narrower than prothorax, which is sub-quadrate and scarcely 

 narrowed behind. Elytra more than one-half as long again as the head and pro- 

 thorax together, rounded more acutely behind tlian in the male, and as wide as 

 the prothorax. Antennae rather shorter than the elytra, and slightly enlarged at 

 tip. Length 1.7 mm. 



Plate VII, Figs. 10 and H\a. 



The above description of the male is taken from LeConte's type of 

 pubendns, which was considered by Crotch as identical with the male of 

 pusiUns. By comparing the specimen with the description and figure of 

 the male of the latter species as given by Sturm, I can but agree with 

 him in this decision. The only diflference between the type of puheruhis 

 and perfectly normal specimens of pusillvs % is, that in the former the 

 head and prothorax are more developed laterally, and the elytra have be- 

 come denuded of the usual setiform pubescence. 



The species is common and cosmopolitan. 



25. Ij. denticornis n. sp. Male. -Form moderately elongated, depressed; 

 sides parallel. Punctures of head and prothorax small, deep and sparse; elytra 

 striate. Surface shining: color deep reddish testaceous ; integuments dense. Pu- 

 bescence of head very short and sparse, that on prothorax more plentiful, that of 

 elytra exceedingly sparse and longer. Head sub-quadrate ; front of epistoma trans- 

 verse, the sides being straight and parallel, thus forming a short quadrate projec- 

 tion of the head in front of the line joining the bases of the antennae; median 

 line well marked. Prothorax a little wider than the head, broader than long; 

 anterior and posterior angles well marked; sides straight, slightly converging pos- 

 teriorly; lateral striae distinct, partially double. Elytra one-third as long again 

 as the head and prothorax together, as wide as the lattei", entire and evenly rounded 

 behind ; sides slightly arcuate. Antennae as long as elytra, first joint one-half as 

 long as the entire remainder, and provided anteriorly with a short, apical and ar- 

 cuate tooth, which is nearly perpendicular to the axis of the joint; joints two to 

 eight moniliform. third and eighth joints equal, sub-globular and much the smallest, 

 three outer joints enlarged, 1»U not flattened. Length 1.8 mm. 



Plate VII, Fig. 11. 



Two specimens, Texas (Schwarz). I have not been able to identify 

 the female as yet, but it probably lacks the tooth of the first ante'nnal 

 joint. This species bears a certain resemblance to Reitter's uiiciconiis. 



