NORTH AMERICAN COLEOPTERA. 77 



G. sanguinea, of Europe, has been refei'red to as probably allied 

 to this species, but an examination of that shows that it should be 

 associated with aviericuna, by reason of its convex form and not 

 exphmate elytral margin. 



Occurs from Canada to the New England and Middle States west- 

 ward to Wisconsin ; North Carolina (Lee.) 



G. riirosauguiiiea Say, Journ. Acad, v, p. 299; ed. Lee. ii, p. 343.— Oval, 

 uanower in frout, subdepressed, dull red, subopaque, sparsely finely pubescent. 

 Anteuuse entirely black. Head entirely red, coarsely and densely punctured, 

 and with a slight median depression. Thorax nearly twice as wide as long, 

 slightly narrower in front, sides arcuate, hind angles distinct and slightly promi- 

 nent, base on each side oblique, disc feebly convex, a broad fovea each side and 

 a median depression, surface coarsely and closely punctured; scutellum red; 

 elytra slightly wider behind the middle, sides feebly arcuate and distinctly ex- 

 planate. humeri distinct, but obtuse; sutural angle well marked, but not acute; 

 surface very closely punctate, rather coarsely at middle, more finely at sides and 

 apex. Body beneath and legs dull red, metasteruum somewhat darker. Length 

 .18— .22 inch. ; 4.5—5.5 mm. 



Male. — Claws bifid at tip, the parts rather widely divergent. Last ventral as 

 in cavicollis. 



Female. — Claws similar to the male. Last ventral either simple, or with a very 

 feeble fovea at the middle of the edge. 



As in cavicollis the middle coxa5 are contiguous. No variations 

 have been observed. 



This species and cavicollis are closely related, but the denser punc- 

 tuation of the surface, together with the resulting opacity, will readily 

 separate this species. 



Occurs in Pennsylvania, Maryland, North Carolina, and at times 

 abundant along the sea-coast. 



G. Integra Lee, Proc. Acad. 1865, p. 218.— Oblong, oval, not very convex 

 dull yellow, feebly shining, sparsely clothed with fiue recumbent pubescence, 

 thorax trimaculate. each elytron with a subsutural and three discal slender 

 stripes. Antennae piceous, the four basal joints paler at base. Head closely, not 

 coarsely punctate, a fine median depression and piceous line. Thorax not quite 

 twice as wide as long, slightly narrower in front, sides arcuate, hind angles 

 rounded, disc not very irregular, closely finely punctured, with more sparsely 

 placed coarser punctures, then piceous spots, the median linear, the lateral small 

 and round; scutellum pale; elytra scarcely widened behind the humeri, these 

 distinct, but obtuse; sutural margin feebly prominent, disc closely punctate, the 

 punctures gradually finer to apex, sutural angle obtuse, subsutural vitta not 

 reaching base or apex, second and fourth entire usually united at apex, the third 

 not reaching either base or apex. Body beneath colored as above, metasternum 

 sometimes darker. Legs pale. Length .16 — .20 inch. ; 4— 5 mm. 



Male. — Last ventral segment with a very narrow triangular incisure extending 

 nearly the length of the segment; claws finely bifid at tip. 



TEANS. AM. ENT. SOC. XX. MAY, 1893. 



