222 Trans. Acad. Sci. of St. Louis. 
angles shorter, extending only to basal third, the elytra relatively 
smaller and only just visibly wider than the head, about as long as 
wide, the abdomen wider, being, at the middle, very nearly as wide as 
the elytra. Male with the fifth yentral broadly and slightly flattened 
toward the middle, the apex truncate, with a very shallow simple and 
and broadly rounded sinus in fully median third; broad tip of the 
sixth segment with a simple semicircularly rounded sinus in about 
median fourth and about three times as wide as deep. Length3.9 mm.; 
width 0.88 mm. New York (Long Island) to Virginia...latiusculus Csy. 
5 — Prothorax evidently shorter than the elytra. Body blackish-piceous in 
color, except the prothorax which is dusky rufous, the elytral apices 
and legs throughout pale flavo-testaceous, the antennae dark rufo-testa- 
ceous; punctures of the head and pronotum coarse and longitudinally 
confluent, of the under surface of the former equally coarse. and very 
close-set but not distinctly confluent, of the elytra finer but strong and 
rather sparse, of the abdomen very fine and notably sparse, the last two 
surfaces polished; head longer than wide, the convex eyes at nearly 
twice their own length from the base, the sides behind them rapidly 
converging and broadly arcuate to the narrow neck; labral teeth unu- 
sually long and acute; prothorax much longer than wide, two-thirds 
as wide as the head, broadly rounded and very obsoletely subangulate 
at two-fifths from the apex, the sides thence feebly converging and 
nearly straight to basal fifth, thence strongly converging to the base, 
strongly converging and straight anteriorly to the narrow neck; elytra 
quadrate, parallel, one-half wider than the prothorax and about a 
fifth longer, just visibly narrower than the head; abdomen parallel, 
very feebly arcuate at the sides, as wide as the elytra; legs slender. 
Male with the fifth ventral unmodified on the disk, the apex rectilinearly 
truncate, with a very small, broadly triangular median process, wider 
than long and obtusely angulate, the process slightly tumid on the 
surface, the sixth segment with a broad, shallow and broadly rounded 
apical sinus, nearly five times as wide as deep. Length 4.3 mm.; 
width 0.75 mm. New York, Pennsylvania and District of Columbia. 
Be rudis Lec. 
Prothorax equal in length to the elytra. Body stouter but otherwise nearly 
similar, - pale rufo-testaceous in color, the abdomen broadly clouded 
with piceous, the elytra more flavate, with the apex more broadly and 
conspicuously pale and nearly luteous-white, the legs very pale honey- 
yellow throughout; head nearly as in rudis but broader and less evenly 
rounded at base, the latter being broadly and obtusely subangulate; 
prothorax broader and more oval, the anterior angles, just behind api- 
cal third, much more broadly rounded and subobsolete; elytra larger, 
subquadrate, only very slightly narrower than the head, two-fifths wider 
and scarcely longer than the prothorax, strongly shining and somewhat 
more sparsely punctured than in rudis; tarsi rather more elongate. 
Male unknown. Length 4.3mm.; width0.8mm. Rhode Island (Boston 
NECK) -evececccccevcccserececcccsccesccecccsensecescessApicalis 0. sp. 
6 — Head broadly rounded or subtruncate at Dase...cccessecesccccecccseed 
Head strongly rounded or subangulate at base, generally ogival in form 
behind the: YES oo4s<cecesisccdvaeeceeces caslecis dames as beneue bawee os 10 
