322 GEO. H. HORN, M D. 



vex and punctured. Elytra scarcely wider at base than thorax, sub-quadrate, 

 sides feebly arcuate and narrowing to apex, sutural region depressed, humeri 

 moderately prominent, surface deeply striate, striae coarsely punctured, inter- 

 vals flat, punctato-scabrous, sparsely clothed with very short whitish pubes- 

 cence; color black, opaque, with large rufous spot touching the lateral margin 

 only. Pygidium elongate oval, densely clothed with white pubescence and 

 with two small round black spots at centre and one triangular on each side 

 near the apex. Body beneath black, densely clothed with whitish pubescence. 

 Legs black, sparsely whitish pubescent. Length .12 — .18 inch; 3—4.5 mm. 



A very distinct species, and one which cannot be confounded with 

 any other in our fauna. The eyes are unusually large (especially in 

 the male), very convex and nearly contiguous at the front, and behind 

 them the head is apparently constricted. The outer joints of the an- 

 tennae are gradually shorter and furnished on the anterior side with 

 long branches from the fourth joint. The process of the fourth joint, 

 although stouter, is scarcely half as long as that of the sixth, the fifth 

 being intermediate in size, the processes from 7 — 11 are nearly as long 

 as the entire antenna itself. The very short pubescence of the elytra 

 gives them a pruinose appearance. The male has the pygidium nearly 

 vertical, in the other sex slightly oblique. 

 Occurs in Kansas and Colorado. 



B. coryplise, Oliv. Ent. iv., No. 79, p. 16, pi. 2, fig. 18, a, b, e ; Fab. Syst. 

 El. ii., p. 402. — Form short, robust; color rufous, moderately shining, head and 

 antennae black, beneath clothed with dense white pubescence; legs rufous, 

 hind femora mutic. Head black, sub-opaque, front sub-carinate, eyes large 

 moderately prominent. Antennae % pectinate from the fifth joint, fourth joint 

 triangular, color black, longer than head and thorax. Thorax rufous moder- 

 ately shining, one and a half times as wide at base as long, apex truncate, nar- 

 rowly margined with black, base trisinuate, median lobe emarginate at middle, 

 sides very feebly arcuate ; surface densely and coarsely punctured, median 

 line at middle feebly impressed, surface very sparsely clothed with whitish, 

 pubescence of a deciduous nature. Elytra sub-quadrate, as broad conjointly as 

 long, gradually wider at base than thorax, deeply and broadly striate, striae 

 with very large, distinct, deep punctures, intervals narrow, convex and 

 smooth; sutural region depressed, suture very narrowly margined with black : 

 surface very sparsely pubescent with whitish hairs and a small round spot at 

 the middle of suture common to both elytra clothed with whitish hairs. Scu- 

 tellum small, rounded, clothed with whitish pubescence. Pygidium elongate 

 oval vertical, densely clothed with whitish pubescence, a distinctly impressed 

 puncture on each side of middle and two small black spots at sides near the 

 apex. Body beneath rufous, coarsely punctured and densely clothed with 

 whitish pubescence; hind coxse black; abdomen rufous, finely punctulate, 

 densely clothed with whitish pubescence. Legs rufous, tarsi black. Length 

 • 16 inch; 4 mm. 



Closely resembles in form the preceding species, but abundantly 



