94 Trans. Acad. Sci. of St. Louis. 



two and three times as wide as deep, the surface very feebly impressed 

 along the median line except toward base; female with the sixth ventral 

 evenly rounded and feebly lobed at tip. iLength 6.4:mm. ; width 0.95 mm. 

 Rhode Island (Boston Neck), Massachusetts (Lowell) and New York 



(near the city) rhodeana n. sp. 



Color piceous-black, the elytra dull rufous, blackish toward base, the legs 

 and antennae pale testaceous; form and sculpture similar to the pre- 

 ceding, the elytral punctures more evenly serial in arrangement and the 

 pronotal punctures decidedly coarser and less sparse; head rather less 

 distinctly narrower than the prothorax, with the basal angles similarly 

 very broadly rounded; prothorax a little broader and less elongate; 

 elytra but little longer than wide, about a fourth wider and distinctly 

 longer than the prothorax; abdomen distinctly narrower than the elytra. 

 Male with the sixth ventral narrow, more strongly rounded at tip, with 

 the median sinus similar, the surface not impressed except very obso- 

 letely and in posterior half . Length 5.7 mm.; width 0.85 mm. Rhode 

 Island (Boston Neck) semirnbida n. sp. 



4 — Body somewhat stouter, less fusiform and more parallel, piceous-black 



throughout, the legs and antennae pale; punctures nearly as in semiru- 

 bida, those of the pi'onotum sparser; head parallel, the basal angles less 

 broadly rounded than in the preceding species; prothorax only very 

 slightly longer than wide, the sides sensibly converging from apex to 

 base and almost straight; elytra slightly longer than wide, much wider 

 and longer than the prothorax; abdomen narrower than the elytra. 

 Male not at hand; female with the sixth ventral as in rhodeana. Length 

 6.4 mm.; width 1.05 mm. Indiana and westward concolor Lee. 



5 — Elytra large, equal in length to the prothorax in the female and but just 



visibly shorter in the male. Body large and stout, moderately convex, 

 parallel, black throughout, the legs and antennae pale ferruginous; 

 punctures of the head rather coarse, sparse, almost wanting broadly to- 

 ward the middle, of the pronotura rather smaller and very sparse, irregu- 

 lar, of the elytra still smaller, fine, sparse, partially subserial, the abdomen 

 dull, densely punctulate ; head slightly smaller than the prothorax, more 

 distinctly so in the female, parallel and feebly arcuate at the sides, the 

 angles obtuse and narrowly rounded, rather distinct; antennae unus- 

 ually long and slender, filiform, longer than the head and prothorax, the 

 medial joints obconic and fully twice as long as wide; prothorax large, 

 but little longer than wide, sides distinctly converging from apex to 

 base, the angles moderately rounded; elytra large, distinctly wider than 

 the prothorax, slightly longer than wide and parallel; abdomen broad, 

 as wide as the elytra. Male with the fifth ventral rather broadly and 

 strongly impressed along the middle except toward base, the apical 

 margin broadly, feebly sinuate in more than middle third; sixth seg- 

 ment without impression, the apex rounded, with a large, narrowly 

 rounded parabolic sinus, nearly a third as wide as the segment and 

 nearly as deep as wide; legs throughout very stout; female a little 

 smaller and more slender than the male, the sixth ventral distinctly 

 lobed at apex, the lobe evenly rounded, the legs obviously less stout. 

 Length 6.7-7.5 mm.; width 1.1-1.15 mm. New Jersey, Ohio (Ross Co.) 

 and Iowa cruralis n. sp. 



