138 Trans. Acad. Set. of St. Louis. 



the apex of the sixth ventral, the surface not obviously impressed. . . . 8 



Male sexual characters more pronounced, the notch of the sixth ventral 



larger and deeper, the surface impressed 9 



8 — Antennae more slender than in collaris, gradually, rather distinctly in- 



crassate distally, much longer than the head and prothorax, the medial 

 joints distinctly less than twice as long as wide ; body decidedly more 

 slender than in any of the preceding species, colored nearly as in 

 collaris, the elytra more piceous, the abdomen dark and fuscous, scarcely 

 paler at tip; head nearly as in habilis, the punctures rather small and 

 very sparse ; prothorax distinctly elongate and wider than the head, the 

 sides parallel, evenly arcuate throughout, not more converging toward 

 base, the apical and basal angles almost equally rounded; punctures 

 very fine, sparse and inconspicuous ; elytra much elongated, parallel, 

 scarcely a fourth wider and about a third longer than the prothorax, the 

 punctures very fine but distinctly impressed, not close-set in almost 

 wholly unimpressed series ; abdomen slender but only slightly narrower 

 than the elytra, densely dull. Male unknown;; female with the sixth 

 ventral obtuse and very broadly ogival at tip. Length 5.0 mm. ; width 



0.8 mm. Virginia (Fredericksburg) merens n. sp. 



Antennae as in merens but longer, stouter and much more strongly incras- 

 sate distally, extending nearly to the middle of the elytra; body still 

 more slender, almost similarly colored, the head black, the prothorax 

 bright testaceous, the elytra darker piceo-testaceous, the abdomen 

 blackish, rufescent toward tip; legs and antennae pale; head nearly as in 

 merens but with the basal angles very much more broadly rounded; 

 prothorax similar but larger, distinctly elongate and wider than the 

 head, parallel, the sides evenly and feebly arcuate, the four angles sub- 

 equally rounded; punctures equally fine and sparse, except in the series 

 along the median smooth area, where they are larger, the series 

 distinctly impressed, except very near the base and toward apex; elytra 

 subparallel, elongate, barely a fifth wider, and a fourth longer than the 

 prothorax, the punctures small and arranged in broadly and distinctly 

 impressed series; abdomen narrower than the elytra, minutely, densely 

 punctulate but less dull than in some other species. Male with the fifth 

 ventral wholly unmodified, the sixth narrowly glabrous and subimpressed 

 along the middle, the apex with a triangular notch, much wider than 

 deep; fully two-fifths as wide as the apex, gradually formed and with 

 its anterior angle slightly blunt, the notch evidently eccentric and 

 asymmetric, being situated slightly to the right of the centre and having 

 its right side much more widely diverging than the left; female not 

 known. Length 5.4 mm. ; width 0.78 mm. North Carolina (Asheville) . 



aemnia n. sp. 



9 — Body rather slender, fusiform, the head and abdomen piceous-black, 



tjie latter not rufescent at tip; prothorax dark testaceous to piceous, 

 the elytra blackish-piceous, sometimes paler along the suture and at 

 base; legs and antennae testaceous; head just visibly narrowed from 

 the eyes to the moderately rounded basal angles, the sides straight; 

 eyes well developed, the punctures rather coarse, very sparse; antennae 

 extending to basal third of the elytra, rather stout, moderately incras- 

 sate, the medial joints scarcely more than one -half longer than wide; 



