364 MEMOIRS ON THE COLEOPTERA 



outside the sutural and marginal lines, which are disposed nearly as 

 in the two preceding. . . . 



2 Form subcylindric, dark red-brown, feebly shining, the coarse pale 

 hairs numerous throughout, giving a gray effect; head with the 

 frontal carinae feeble, uneven and confused, more widely separated 

 than from the supra-antennal carinae; vertex with numerous short 

 stout pale hairs, feebly impressed on the median line near the base; 

 antennae (cf) less than one-half as long as the body, the third joint 

 much shorter than in sag-itlatus, barely as long as the first, the canal- 

 iculation of the outer joints apical; prothorax as wide as long, clothed 

 not densely with coarse and decumbent and longer erect gray hairs; 

 sculpture coarser than in sagittatus and consisting of transversely 

 longer, irregular carinules and granules; scutellum as in pubescens; 

 elytra but little wider than the prothorax, very feebly tapering, 

 fully two and one-half times as long as wide, the briefly biramose 

 sutural and marginal lines of pubescence better developed than in 

 sagittatus, and, in addition, a sprinkling of pale hairs throughout and 

 a small condensed point at the middle of each near the base; punc- 

 tures strong, dense, transversely confluent and rugose; legs shorter 

 than in sagittatus, the femora less stout, the posterior rather far 

 from attaining the elytral tips. Length (cf) 15.5 mm.; width 4.0 

 mm. Wisconsin (Bayfield), Wickham cylindrus n. sp. 



Form less parallel, the elytra more tapering and much wider than the 

 prothorax, which is rather longer than wide, more parallel from 

 behind the middle to the apex and with very large and well separated 

 strong granules, which are but slightly transverse and separated by 

 polished integument; color nearly black throughout, the pale hairs 

 much less numerous than in cylindrus; head strongly punctato- 

 rugose throughout, the front with three subparallel carinse in a 

 confused cluster, the median and anterior the largest; antennae (9 ) 

 very short, barely extending to the base of the prothorax, the third 

 joint scarcely as long as the first; vertex with very few short incon- 

 spicuous hairs; prothorax almost glabrous but with numerous coarse 

 pale decumbent and erect hairs on the flanks; scutellum as in the 

 preceding; elytra a little shorter than in the preceding, the punc- 

 tures not so coarse but very much more densely confluent, the sutural 

 and marginal biramose lines will developed, the offsets almost 

 meeting just outside the median line of each elytron, the condensed 

 point of the preceding larger and obliquely lineiform; scattered 

 hairs elsewhere very few in number; legs short, the hind femora 

 with more numerous punctures and hairs than in any of the pre- 

 ceding. Length (9) 16.5 mm.; width 4.5 mm. New Mexico. 



salebrosus n. sp. 



Some of the characters detailed under salebrosus, such as the 

 larger pronotal asperities and the more developed pubescent 

 lines of the elytra, are in more or less great part sexual in nature, 

 the sculpture of the vertex and the short antennae wholly so, but 

 the closer punctures of the hind femora are probably not sexual 



