Coleopterological Notices, V. 459 



less robust and looser club, with the terminal joint more conoidal 

 and more gradually pointed. 



Our representatives differ from the European species of the am- 

 higuus type in their more convex body and head, and in having- a 

 fine but strong carina extending from the transverse sulcus to the 

 pronotal base ; they should perhaps form a subgenus of Bibloplectus 

 and may be recognized as follows : — 



Sides of the prothorax parallel and nearly straight in middle two-thirds of 

 the length. 

 Size more minute, about 0.G5 mm. in length ; pronotum scarcely punctu- 



late riiiiceps 



Size appreciably larger and stouter, more than 0.7 mm. in length ; pronotum 



rather strongly punctate integer 



Sides of the prothorax not parallel ; size still larger, rather more than 0.8 

 mm. in length ; surface smooth, polished and subimpunctate throughout. 



leviceps 



The species from Michigan, described by LeConte under the 

 name integer, seems to be distinct from the more southern ruji- 

 ceps and I take pleasure in restoring it to its true position. Judg- 

 ing by the type of leviceps, which I have before me, the measure- 

 ments given in my original description are too great ; it is possible 

 that the larger specimen represents a different species. 



TRIMIOPJLECTUS Brendel. 



I have not seen the type recently published by Brendel under 

 the name ohsoletas, but according to the description and figures, it 

 represents a widely distinct genus, singularly combining the char- 

 acters of Trimium and Euplectus. The author placed with ohso- 

 letus several other species, such as arcuatus and ruficeps, which 

 are however in no way very closely related. The elongate protho- 

 rax and basal segment of the abdomen, the latter with an unusually 

 broad pubescent impression, reminding us of some species of Rame- 

 cia — where however the basal segment is never elongate, — the head 

 in the form of "an equilateral triangle with arcuate corners," and 

 the sexual modifications at the ventral apex, as figured, form a com- 

 bination of characters which render it impossible to discuss its true 

 relationships without further study. The tarsal claw probably has 

 an extremely minute or obsolete appendage as in Actium and Trimi- 

 opsis, in the neighborhood of which it is probably most fittingly 

 placed. The name selected b}' Dr. Brendel is certainly appropriate. 



