138 Trans. Acad. Sci. of St. Louis. 
the apex of the sixth ventral, the surface not obviously impressed.... & 
Male sexual characters more pronounced, the notch of the sixth ventral 
larger and deeper, the surface impressed... -ceccersceresesccessccee F 
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 Aabilis, 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 
0.8mm. Virginia (Fredericksburg) .....-ee.eseceeeeeeeMeFrens 0. 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, exceptin 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 5.4mm.; width 0.78 mm. North Carolina (Asheville). 
aemula n. sp. 
9— Body rather slender, fusiform, the head and abdomen piceous-black,, 
the 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; 
