AMERICAN COLEOPTERA. 117 



This species is quite common in the northern portions of our 

 country, extending its range from Pennsylvania to Canada, and west- 

 ward to British Columbia and California. It is the representative of 

 the European trimaculatus iu our fauna. 



B. antieiis, n. sp. — Piceous or piceo-testaceous, thorax and elytra rufo- 

 testaceous, thorax at apical half, a large spot at the outer angle of each elytron 

 and often a scutellar spot nearly black. Head oval, black, sliining. Antennae 

 piceous, apical and four basal joints testaceous. Thorax slightly broader at 

 base than elytra, hind angles obtuse, disc smooth, shining, riifo-testaceous, a 

 large black spot at each anterior angle the two confluent at middle. Elytra 

 slightly longer than wide, diseal series distinct, with fine punctures, sutural 

 and lateral series feeble, color rufo-testaeeous, a black spot of irregular size and 

 shape near the outer apical angle, attaining the side but not the apical margin, 

 often a circum-scutellar dark space. Abdomen piceous, apical margins of seg- 

 ments paler, surface sparsely punctured. Body beneath black, abdomen piceous 

 sparseh' punctured. Legs testaceous, anterior coxae at base piceous. Length 

 .16— .20 inch: 4—5 ram. 



Sexual characters not apparent except that the anterior tarsi of the 

 male are slightly broader than the female. 



This species might be confounded with some of the varieties of 

 pygmseug which are said to occur in Europe in which the thorax is 

 partly piceous, but in this species the male has a distinct tubercle on 

 the sixth ventral segment. 



Occurs in the New England and Middle States, and Michigan. 



B. pyginseus. Fab. — Piceo-testaceous, shining, elytra with a triangular 

 spot at scutellum and at each outer angle black. Head rather broadly oval, 

 smooth black, shining. Antennae slightly longer than the head and thorax, 

 piceous, first four joints testaceous. Thorax at base slightly narrower than the 

 elytrr., hind angles obtuse, not broadly rounded, color yellowish testaceous, 

 smooth, shining. Elytra as wide as long, dorsal series of few punctures, sutural 

 and lateral series nearly obsolete, color yellowish testaceous, smooth shining, a 

 long triangular spot at the scutellum, one at each outer angle of the elytra not 

 attaining the apical margin. Abdomen piceo-testaceous varying to rufous, very 

 sparsely punctured. Body beneath piceous, abdomen paler and moderately 

 punctured. Legs and anterior coxse pale testaceous. Length .14 — .16 inch ; 

 3,5 — 4 mm. 



Male. — Sixth ventral segment with au obtuse tubercle behind which the 

 segment is slightly impressed. 



Female. — Abdomen simple. 



Specimens are from the Gulf States, and one from British Columbia. 



B. lriiiO<atus, Erichs. — Piceo-testaceous, shining, elytra with a spot in 

 each outer angle and frequently a scutellar spot piceous. Elytra with the 

 three series multiiiunctate. 



This species agrees in form and color with the preceding species and 



differs superficially in having the dorsal series multipuuctate. 



