Coleopterological Notices, VII. 411 



but not longer than wide ; eighth nearly }4. thicker than the seventh, slightly 

 wider than long ; ninth similar to the eighth in form but larger ; tenth 

 slightly wider and fully )^ wider than long ; eleventh stout, obliquely 

 pointed. Frothorax well developed, rather longer than wide, conic, the sides 

 distinctly arcuate ; apex fully J^' as wide as the base, the latter }4 wider than 

 the head ; surface even or with a slight flattening along the median line 

 toward base. Elytra evenly oval, fully }4 longer than wide, barely twice as 

 long as the prothorax and not more than }4 wider, the sides evenly arcuate ; 

 Apex rather acute ; humeral plica very feeble and basal, the subhumeral im- 

 pression almost wholly obsolete ; two basal fovese distinct ; subsutural impres- 

 sions rather strong, especially near the base and quite oblique ; suture feebly 

 elevated toward base. Legs well developed, the femora all strongly clavate. 

 Length 1.65 mm. ; width 0.6 mm. 



Iowa (Iowa City). Mr. Wickham. 



The single type before me is of undeterminable sex. This 

 species is very distinct in coloration, and may be known besides 

 by its narrow form, nearly obsolete humeral plica and impression, 

 but distinct sutural impressions, and by the subtransverse pen- 

 ultimate joint of the antennae. 



17. C. fossiger Lee— Proc. Acad. Nat. Sci., Phila., 1852, p. 152 (Scyd- 

 msenus). 



Moderately stout, polished and impunctate, black, the elytra 

 red but blackish toward tip ; legs and antennae rufous, the femora 

 blackish ; abdomen faintly paler at tip ; pubescence moderately 

 long and rather abundant, somewhat pale in color on the elytra. 

 Head decidedly wider than long, broadly rounded behind the 

 eyes, which are rather small but convex and somewhat prominent; 

 clypeal tooth very small, triangular. Antennae about ^ as long 

 as the body, the club abrupt, with its joints increasing feebly in 

 thickness ; second slightly thicker than three to six, cylindric, 

 f longer than wide ; three ^, four ^, five nearly ^ and six ^, longer 

 than wide ; seven but A^ery slightly thicker, cylindric, -f longer 

 than wide ; eighth a little longer than wide, as long as the tenth 

 and a little narrower ; tenth as long as wide. Prothorax rather 

 longer than wide ; apex somewhat more than ^as wide as the base, 

 the latter ^ wider than the head ; surface perfectly even through- 

 out. Elytra ^ longer than wide, f wider than the prothorax, the 

 sides evenl}^ arcuate ; apex not very narrowly rounded ; humeral 

 plica and subhumeral impression pronounced ; foveae small ; sub- 

 sutural impressions almost completely obsolete. Legs Well de- 

 veloped, the femora all strongly clavate. Length 1.65 mm. ; 

 -width 0.65-0.7 mm. 



