Coleopterological Notices, V. 469 



and base finely carinulate ; general surface rather sparsely Imt asperately 

 punctate. Elytra about as long as wide ; sides very feebly divergent from 

 the distinct humeri and nearly straight ; intrahumeral excavation large and 

 strong. Abdomen slightly narrower and much shorter than the elytra, the 

 basal carinse strong, approximate, separated by scarcely one-tenth of the total 

 width. Length 1.6 mm. ; width 0.55 mm. 



North Carolina (Asheville). 



This species is allied to cavicrus, but differs in its unicristate 

 occiput and very much in the sexual characters of the male, the 

 venter in that sex having a larger wide impression at the apex. 

 The posterior femora are bowed, with the convexity downward, 

 strongly clavate, the clavate part strongly punctate externally but 

 impunctate and polished internally, gradually narrowed at the 

 middle and attached by a slender peduncle which is nearly one- 

 half as long as the femur, the corresponding tibite swollen toward 

 the middle and the trochanters with a long contorted inferior pro- 

 cess. Two males. 



It is scarcely possible that this species can prove to be the same 

 as covfinis Lee, for that is much larger and apparently lacks the 

 four anterior pronotal spines. Carolivae is one of the most minute 

 species of the genus, though juvencus Brend., which is stated to be 

 1.4 or 1.5 mm. in length, appears to be still smaller; it is related to 

 carolinse but differs in its almost obsolete occipital crest and dark 

 color, as far as can be inferred from the description of the single 

 female type from northern Illinois. . 



The Pacific coast species form a homogeneous group, distinguished 

 in general from the Atlantic coast forms by the fact that the sexual 

 modifications are almost invariably concentered at the posterior 

 extremity of the body, while in the latter they quite as constantly 

 affect the anterior portions only, the curious cephalic and antennal 

 characters of the eastern males being unknown — if we except a 

 minute subbasal spicule of the eleventh joint — ^jn the western repre- 

 sentatives. Another singular fact is that among these west coast 

 forms, there are several which are separable more readily by female 

 characters than b}^ those of the male. The species known to me 

 may be distinguished as follows, cicatricosus not being represented 

 in my cabinet : — 



Elytra finely punctulate; head not carinate ; pygidial modifications when 

 present affecting the female only ; ventral excavation of the male large. 

 Color of the body intense black throughout monticola 



