380 MEMOIRS ON THE COLEOPTERA 



developed, except the post-humeral, which is wholly wanting in 

 the type; punctures rather coarse, not dense and not very even in 

 distribution. Length (9) 13.0 mm.; width 4.8 mm. A single 

 example without designation of locality, but probably from Colorado. 



junctus n. sp. 



Body much narrower and more elongate, not so bright red, the elytra 

 often yellowish, the erect setae above black, longer and more con- 

 spicuous; antennae similar; prothorax (cf) similarly transverse, 

 nearly twice as wide as long, almost as in junctus throughout, the 

 spots approximate longitudinally and partially joined by black along 

 the umbo, the anterior margin not thickened and convex as it is in 

 junctus; basal margin black, or ( 9 ) much less transverse, with the 

 spots not joined; elytra with all four spots well developed, the post- 

 humeral obliquely subquadrate (cf ), smaller (9 ); punctures coarse, 

 more numerous than in the preceding, similarly very fine apically; 

 sutural angles broadly rounded (cf 1 ), more narrowly (9); vestiture 

 beneath dense, olivaceous; legs deep black, the anterior and middle 

 femora red medially, the former only on the anterior face, the latter 

 on both. Length (cf 9 ) 11.8-12.4 mm.; width 4.4-4.8 mm. New 

 Mexico (Las Vegas), Snow vegasensis n. sp. 



17 Moderately stout, convex, dull red to brick red, the integument 

 largely concealed by the dense cinereous vestiture almost as in 

 canescens, the erect hairs extremely short and cinereous, longer and 

 black on the prothorax; under surface very densely clothed with 

 olivaceous vestiture; all the femora and tibiae red, the knees and 

 tarsi black, the hind tibiae obscure in the female; antennae rather 

 long, black, clothed as in the preceding, the scape generally red, 

 black at apex, but sometimes almost completely black; prothorax 

 (cf ) two-thirds wider than long, the quadrangle of spots rather more 

 transverse in the male, the lateral prominences strong, the umbo 

 strong and abrupt, coarsely punctate, with broadly rounded sides; 

 base and apex concolorous; elytra somewhat expanded at the humeri 

 in both sexes, the four spots well developed, the posterior transversely 

 oval, the post-humeral larger than in any other western species, 

 obliquely subquadrate to irregularly oblong, more obscured by the 

 vestiture than any of the others; punctures moderately coarse and 

 rather sparse; the three females have a rounded denuded apical spot 

 not visible in the single male; abdomen unusually protruded behind 

 the elytra in the female. Length (cf 9 ) 14.0-16.8 mm.; width 5.0- 

 6.0 mm. Kansas (Finney and Hamilton Cos.), Menke and Hunter. 



velutinus n. sp. 



18 Upper surface densely clothed with cinereous vestiture, giving a 

 strongly pruinose effect 19 



Upper surface much less densely clothed, never giving more than a feebly 

 pruinose effect 20 



19 Body large and very stout, almost as in the preceding but stouter 

 and with the elytra ( 9 ) scarcely at all expanded at the humeri, 

 though evidently so (cf ); upper surface dull red, the under surface 

 black, very densely clothed with ashy-gray vestiture, the legs colored 

 as in velutinus; erect hairs short, cinereous, rather distinct; antennae 



