Casey — A Revision of the American Paederini. 185 



but only slightly rounded basal angles, the base truncate; punctures 

 sparse, rather coarse ; antennae nearly as in nigricans but rather thicker, 

 the medial joints less than one-half longer than wide; prothorax more 

 elongate, distinctly wider than the head, parallel and very feebly arcu- 

 ate at the sides, the punctures only moderately sparse, rather coarse 

 and distinct, unevenly serial along the median smooth area; elytra much 

 elongated, parallel, fully a third wider and longer than the prothorax, 

 the punctures small but distinct, rather close -set, serial except toward 

 tip, sometimes rather confused throughout ; abdomen parallel, distinctly 

 narrower than the elytra. Male with the fifth ventral unmodified, the 

 sixth feebly impressed along the middle, the sides of the impression 

 obtusely rounded and not abrupt, the apex with a subtriangular sinus 

 with rounded angle, nearly a third as wide as the apex, somewhat wider 

 than deep and apparently eccentric and asymmetric, being to the right 

 of the centre — estimating from the segmental base — and with its right 

 side more strongly diverging from the axial line thap the left; female 

 not at hand. Length 4.5 mm. ; width 0.8 mm. New Jersey. \_— Lathro- 



bium tricolor Csy.?] < ventralis Lee. 



Body larger and much stouter, the head black; prothorax and elytra uniform 

 and concolorous, rufo-piceous, the abdomen piceous -black, becoming 

 rufous at tip and narrowly at the apex of each segment; legs and anten- 

 nae testaceous; head nearly as in ventralis, the eyes rather larger, the 

 nearly straight sides equally feebly converging and meeting the broadly 

 arcuate base in obtuse angles, which are scarcely at all rounded; 

 prothorax distinctly elongate, much wider than the head, parallel, the 

 sides broadly arcuate, the punctures rather coarse and not very sparse, 

 not lineate along the smooth area; elytra large, much elongated, sub- 

 parallel, a third wider and two-fifths longer than the prothorax, the 

 punctures not coarse but distinct, impressed, rather close-set and par- 

 tially serial; abdomen broad, equal in width to the elytra, finely and 

 densely punctulate. Male unknown; female with the sixth ventral very 

 obtusely subangulate and rounded at tip. Length 4.9 mm. ; width 0.92 



mm. Pennsylvania barda n. sp. 



3 — Antennae half as long as the body in the male, rather shorter in the 

 female, slender, but very slightly incrassate distally, the medial joints 

 nearly twice as long as wide. Body rather stout, only moderately convex, 

 colored as in collaris; head fully as long as wide, coarsely and sparsely 

 punctate, parallel at the sides, the angles rounded; prothorax large, 

 only very slightly longer than wide, smaller and straighter at the sides 

 in the female, much wider than the head, the sides feebly convergent 

 from apex to base and broadly, evenly arcuate throughout; anterior 

 angles rather distinct, the punctures fine and very sparse, lineate along 

 the median smooth space; elytra depressed, slightly elongate, the sides 

 feebly diverging and straight throughout, a fourth wider and a third 

 longer than the prothorax, the punctures strong, though not very coarse, 

 not close-set, arranged in even impressed series, confused toward 

 tip; abdomen broad, scarcely narrower than the elytra, minutely, 

 densely punctulate. Male with the fifth ventral unmodified, the sixth 

 not impressed but broadly glabrous toward the middle, the apex with 

 a large triangular notch much wider than deep, two- fifths as wide as 



