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 attip. |Length 6.4mm.; width 0.95 mm. 
Rhode Island (Boston Neck), Massachusetts (Lowell) and New York 
(near the City)... .sceee secs secevceccecccccerevccee sees FhOdeana D. 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). +--+ sceecesccesceceeseeeee cee SeMirubida 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 pronotum 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 inrhodeana. Length 
6.4 mm.; width 1.05 mm. Indiana and westward........concolor Lec. 
5 —Elytra large, equal in length to the prothorax in the female and but just 
visibly shorter inthe 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 pronotum rather smaller and very sparse, irregu- 
lar,of the elytra stillsmazller, fine, sparse, partially subserial, theabdomen 
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 TOWE csi ewekseeasie te even i Valine's e6 One teas b wices nd RMR 2, BR, 
