AMERICAN COLEOPTERA. 317 



occupied. The name cratsegi, Sch., is a true synonym, the type -was 

 a male, Say's type was the ether sex. 



Group III. 



The species of this group are for the most part of short robust form. 

 The front is usually carinate, the antennae serrate or even pectinate in 

 the males. The hind femora are not very stout, but have both on the 

 outer and inner margins a tooth, that of the inner side larger. Vesti- 

 ture and color variable. 

 Elytra varicolored, pubescence varied. 



Median basal thoracic lobe with elevated ivory-like space Scutellaria. 



Median basal lobe with whitish hairs only quadriiuaculatus. 



Elytra unicolored, black, pubescence dark cinereous sordid us. 



B. Scutellaria, Fab. Syst. El. ii., p. 399; Ent. Syst. ii., p. 372.— Short, 

 robust, brownish, opaque. Head brown, opaque, densely and coarsely punc- 

 tured, front subcarinate. Antennae variable, usually paie rufous, rarely with 

 the outer joints nearly black, as long as head and thorax, male pectinate, 

 female serrate. Thorax trapezoidal, sides nearly straight, base trisinuate, 

 median lobe emarginate at middle; color brownish opaque; surface coarsely 

 punctured intervals rugoso-granulate; median line in front and narrow space 

 at sides sparsely clothed with' cinereous pubescence, a small whitish spot on 

 each side of the median line near the middle of the thorax, basal lobe white, 

 ivory-like, clothed with whitish pubescence. Scutellum convex, white. Ely- 

 tra sub-quadrate, feebly convex, wider at base than thorax; surface striate, 

 striae punctured, intervals flat, scabrous or finely punctulate; color usually 

 brownish or ferruginous with darker spaces at base and humerus, and a 

 darker space at middle of side connected along the margin. Pygidium nearly 

 vertical, clothed with ochreous hairs, with a whitish line along the middle and 

 a reniform brown spot on each side near the apex. Body beneath brownish, 

 densely punctulate, sparsely clothed with whitish hairs; abdomen paler, with 

 a band of white hairs at the sides. Legs, anterior and middle pairs, pale 

 rufous, hind legs dark rufous or brownish. Hind femora armed near the tip 

 with an acute tooth on the outer and inner side. Length .12 — .16 in ; 3 — 4 mm. 



This species is variable in its color and elytral vestiture. The above 

 description applies to the forms most abundantly found. Specimens 

 from the Southern States are much darker in color and exhibit the 

 elytral vestiture more distinctly. Between the basal and lateral dark 

 spaces the pubescence is pale ochreous, and behind the lateral space 

 cinereous. In front of the lateral spaces is a short band composed of 

 three spots and behind it an irregular band crossing the elytra. The 

 third interval has also a short white line. The pubescence of the 

 pygidium at times becomes uniformly cinereous. 



This species has been confounded with quadrimaculatus, but differs 



TRANS. AMER. ENT. S0C. (41) JANUARY, 1873. 



