Coleopierological Notices, IV. 567 



obsolete. The beak in the male is quite distinctly shorter than the 

 prothorax, the antennas stout, the second and third funicular joints 

 equal and slightly wider than long, the outer joints becoming ex- 

 tremely wide and subcontinuous in outline with the club, the latter 

 small but thick, only slightly longer than wide, conoidal, densely 

 pubescent, the basal joint constituting rather more than one-half 

 the mass. Prothorax scarcely one-third wider than long, with the 

 sides straight and parallel to apical third, then broadly rounded and 

 convergent and somewhat constricted to the apex ; disk deeply, very 

 densely punctate, without impunctate line. Elytra a little wider 

 than the prothorax and about two and one-third times as long, 

 parallel, abruptly and broadly rounded at apex, the sculpture and 

 striation concealed by the vestiture, the striae feebly indicated by 

 fine partings of the scales, which are not oblique along the sides of 

 the intervals. Prosternum distinctly impressed, separating the 

 coxa?, by about one-third of their own width. Length 4.3-5.1 mm. ; 

 width 1.75-2.0 mm. 



Texas and Colorado. The third and fourth ventral segments are 

 denuded toward base in the middle, and, in the male, there is a 

 large elongate flattened or very feebly impressed area in basal half, 

 extending substantially to the base, in which the normally recum- 

 bent scales become longer, more slender, stiff and semi-erect setaa ; 

 there is also a small spot in the middle of the fifth segment in which 

 the vestiture is similarly modified. 



6 Trictio'baris cylindrica n. sp. — Parallel, subcylindrical, convex, 

 very narrow and elongate, black ; integuments concealed above by an exces- 

 sively dense covering of large wide strigose scales, the denuded pronotal spots 

 feebly indicated on the basal margin only, the scutellum glabrous. Bead 

 glabrous, opaque, almost impunctate, the transverse constriction very strong 

 but not grooved and caused, as usual, by the pronounced gibbosity at the 

 base of the beak, the latter strongly, evenly arcuate, moderately robust, 

 densely squamose, scarcely as long as the prothorax in the male, the antennae 

 nearly as in texana but less stout. Prothorax one-fourth wider than long in 

 the male, but still longer in the female, constricted near the apex, the sides 

 broadly rounded, gradually becoming parallel and nearly straight in basal 

 half; base transverse, broadly bisinuate ; disk evenly, extremely densely 

 punctate, without trace of median line, the surface completely concealed by 

 the large transversely directed scales, which are in mutual contact. Scutellum 

 moderate, transverse, broadly, deeply impressed but not so acute and promi- 

 nent at the sides as in texana. Elytra a little wider than the prothorax and 

 nearly two and one-half times as long, parallel, abruptly and broadly rounded 

 at apex, the pygidium feebly oblique and visible behind, the humeri slightly 



