162 THE CANADIAN ENTOMOLOGIST. 



femoral toolh and abnormal antenna! characters bespoke the male, and 

 was therefore led to make a distinct genus for these females named 

 Tanilotes (1. c, p. 798). Suppressing the genus Tanilotes, therefore, we 

 may suggest the following arrangement for the rather numerous species of 



Vanomis : — 



Vestiture simple and uniform, short, rather stiff and not conspicuous .... 2 

 Vestiture dual, consisting of larger, suberect and stififer hairs, borne by 

 the punctures, and very small, fine decumbent and denser hairs cover- 

 ing the interspaces ; eyes generally very large, the body always small 

 in size, less than 1.5 mm. in length ; basal impressions of the pronotum 

 large but shallow, always separated 9 



2. Two subbasal impressions of the pronotum confluent transversely.. . .3 

 Two subbasal impressions separated 8 



3. Subbasal impression of the pronotum feeble, especially at the middle ; 



species much larger, nearly 2.5 mm. in length, rather sparsely punc- 

 tured, brown in colour, the head darker. Wisconsin calvescens, Csy. 



Subbasal impression deep and conspicuous throughout its extent; species 

 minute, scarcely ever exceeding 1.5 mm. in length 4 



4. Prothorax as long as wide, or nearly so, the sides oblique and nearly 



straight anteriorly 5 



Prothorax transverse 6 



5. Eyes moderately large, separated by scarcely more than twice their 



own width ; occiput but slightly elevated, blackish-piceous in colour, 

 the antennae and legs red-brown ; elytra feebly elevated internally 

 near the scutellum. Pennsylvania (near Philadelphia).. ..piceus, Lee. 

 Eyes smaller, separated by much more than twice their own width, the 

 front flatter and the occiput more elevated when viewed laterally, 

 slightly smaller in size, black or blackish in colour; elytra more 

 strongly and abruptly subtuberculate inwardly near the humeri. 

 Ontario (Severn) iuberculifer, Ham. 



6. Eyes large, separated by much less than twice their own width ; antennje 



thick, gradually incrassate ; prothorax small, subparallel toward base, 

 narrowed apically, dark piceous-brown throughout. New York, 



(Hudson Valley) vigiians, Csy. 



Eyes much smaller, separated by distinctly more than twice their own 



' width ; prothorax strongly, almost evenly rounded at the sides and 



but slightly more narrowed apically than basally 7 



7. Pale brown, the head piceous, moderately stout and convex ; head 



intermediate in width between the prothorax and base of the elytra, 



