CERAMBYCIDJE 245 



apically; pubescence short but closer and more conspicuous than 

 in the preceding; head nearly similar but less closely punctate, the 

 antennae nearly three-fifths as long as the body, slender, testaceous, 

 the basal joints black on their anterior sides; prothorax nearly as in 

 cavicollis but with the punctures ( 9 ) much larger, perforate and 

 decidedly dense, the pubescence paler, closer and more conspicuous; 

 elytra differing decidedly in being parallel and more strongly, as well 

 as much more closely, punctate, as well as being almost similarly 

 sculptured throughout, the punctures scarcely at all larger or sparser 

 basally; legs notably longer, similarly very slender. Length (9) 

 9.0 mm.; width 3.2 mm. Wisconsin (Bayfield), Wickham. 



proteus Kirby 



12 Form stout, oblong-elongate, parallel, the elytra but feebly cuneiform 

 even in the slightly narrower male; integuments not shining as in 

 all the preceding, but opaque black, the elytra as stated, the legs 

 black, the antennae black, gradually piceous apically, three-fourths 

 (cf) to but little more than one-half (9) as long as the body; 

 pubescence evenly distributed, very minute but pale and evident; 

 head finely, not densely punctate, the tempora much less prominent 

 than the very convex eyes, short, rapidly arcuate and oblique to the 

 neck; prothorax barely (d") to distinctly (9 ) wider than the head, 

 wider than long, much narrowed and constricted at apex, strongly 

 and closely punctate, the median smooth line almost obliterated, 

 the prominences even more acute and widely separated than in the 

 two preceding; elytra nearly one-half wider than the prothorax, 

 more than twice as long as wide, with the usual narrow apical trun- 

 catures; punctures widely separated and minute, almost uniform; 

 abdomen very finely, densely punctulate; legs unusually densely 

 clothed with short stiff gray hairs. Length (cf 9 ) 7.0-8.3 mm.; 

 width 2.2-2.9 mm - New Jersey discoidea Hald. 



A species was described from Washington Territory, by LeConte 

 (Proc. Acad. Phila., 1861, p. 356), under the name gibbula, which, 

 though allied to aurora and coloradensis, is probably different, the 

 elytral punctures being coarser than in the latter and the head and 

 prothorax more densely punctate than in the former; it is said to be 

 fusco-pubescent, which language would not apply to either of those 

 species; the length is stated to be 8.75 mm.; it is not closely allied 

 to proteus as now stated in the lists. No other very useful compara- 

 tive remarks can be founded upon the very short description, but 

 the locality is somewhat different. 



The species described by Schaeffer under the name Acmceops 

 pinicola (Bull. Br. Inst., I, p. 341) also belongs to this group. It is 

 probably allied closely to puncticeps but differs in its shorter 

 antennae, these being only half as long as the body in examples 

 which, from the described coloration of the body and legs, are prob- 



