378 Trans. Acad. Sci. of St. Louts. 



appears to differ, being less deeply emarginate or less strongly 

 bilobed in N'oioUnopsis. The species in my cabinet number 

 five at present and they may be defined as follows : — 



Frontal grooves long, though feebly impressed extending well behind the 

 transverse line limiting the eyes anteriorly. Body larger, moderately 

 slender and convex, shining, black, the abdomen slightly picescent, the 

 elytra not paler; legs and antennae blackish-piceous, the tarsi pale; 

 head of the female behind the antennae somewhat longer than wide, 

 the eyes rather small, the punctures coarse and very remotely scattered 

 toward the sides; prothorax a fourth longer than wide, scarcely nar- 

 rower than the head, the anterior angles narrowly rounded, the sides 

 very distinctly converging and nearly straight thence to the base; 

 dorsal punctures strong, very sparsely disposed antero-laterally; elytra 

 ample, rather longer than wide, as long as the prothorax and distinctly 

 wider, slightly wider than the head, the sides diverging from the base; 

 punctures sparse but strong, evenly distributed; abdomen parallel, nar- 

 rower than the elytra, finely, sparsely punctulate except along the mid- 

 dle. Length 7.0 mm; width 1.05 mm. Wellington incaltns n. sp. 



Frontal grooves very short as well as feeble ; species smaller in size 2 



2 — Elytra ample, as long as the prothorax, or, in the male, but little short- 



er, the sides diverging from the base 3 



Elytra much shorter than the prothorax in both sexes, the sides sensibly di- 

 verging from the base 4 



3 — Body larger and stouter, polished, rufo-piceous in color, the elytra 



somewhat paler, the antennae fuscous, the legs pale rufo-piceous; head 

 behind the antennae about as long as wide, dilated toward base in the 

 male, smaller and parallel in the female, the eyes relatively smaller in the 

 former, the punctures coarse and sparse toward the sides; third anten- 

 nal joint but slightly longer than the second, the under surface finely 

 and sparsely punctate toward the sides, impunctate toward the median 

 line and base; prothorax large, especially in the male, as wide as the 

 head in both sexes, a third to two-fifths longer than wide, the apical 

 angles very distinct and narrowly rounded, the sides thence strongly 

 converging to the base and almost straight, the puncture very sparse 

 as usual and only moderately coarse; elytra rather longer than wide 

 much wider than the head in the female and slightly so in the male, 

 a little shorter than the prothorax in the latter but equal in the female, 

 the punctures rather close -set throughout; abdomen finely, sparsely 

 punctulate as usual. Length 5.8 mm; width 0.9 mm. Wellington. 



latitarsis n. sp. 

 Body very slender, black, the elytra dark rufo-piceous, the antennae fuscous, 

 the lege blackish-piceous, with the tarsi pale; head narrower, behind the 

 antennae longer than wide, parallel and straight at the sides, the punc- 

 tures rather small and widely scattered toward the sides, the under sur- 

 face finely, sparsely punctate throughout except toward base; antennae 

 as in latitarsis though more slender; prothorax scarcely as wide as the 

 head, two-fifths longer than wide, the anterior angles rather broadly 

 rounded, the sides thence distinctly converging and broadly, medially 



