94 MEMOIRS ON THE COLEOPTERA 



feebly impressed lines, finely, very remotely punctate, coarsely and 

 more closely though shallowly so toward the suture, especially 

 basally; punctures bearing the long erect hairs somewhat asperulate; 

 pygidium shining green, finely, feebly rugulose and with fine scattered 

 subasperate punctules; mentum broadly concave anteriorly, with 

 the apex deeply sinuate. Length (9) 17.0-19.0 mm.; width 10.0- 

 11.7 mm. Arizona and New Mexico. [Cotalpa puncticollis Lee.] 



puncticollis Lee. 



Legs black, with faint bluish lustre, the entire tibiae constantly dark rufo- 

 testaceous. Body short, obese, convex, moderately shining, blue- 

 black, deeper black beneath, the elytra dark brownish-rufous; head 

 densely and strongly punctate, the punctures becoming smaller and 

 rather sparse basally, the clypeus flat, with slightly reflexed edges, 

 thickened apically, semi-elliptic and more than twice as wide as long 

 ( 9 ), or semicircular and less transverse (cf); prothorax in outline 

 throughout almost as in the preceding, the punctures coarse but not 

 very deep, well separated, not so coarse as in puncticoilis and not dif- 

 fering much in size or character toward the sides, the erect pale hairs 

 coarse, not dense; scutellum ogival, as long as wide, sparsely, strongly 

 punctate; elytra as wide as long to barely longer, a third to fourth 

 (9), or but very little (cf), wider than the prothorax, more circu- 

 larly and less obtusely rounded at apex than in the preceding, the 

 punctures fine though not very sparse, not differing suturally, the 

 two double series generally indistinct, more evident and very feebly 

 impressed in the male; erect hairs (9 ) not very long, inclined, yel- 

 lowish-cinereous, plentiful toward the suture but shorter and sparse 

 elsewhere, almost wanting throughout or readily removed in the 

 male; pygidium in both sexes finely, closely and rather strongly 

 rugulose throughout, though shining, dark blue in color like the 

 prothorax. Length (cf 9 ) 14.0-16.5 mm.; width 8.5-10.4 mm. 

 Southern California. Abundant, the male much less so than the 



female. [ Cotalpa ursina Horn] ursina Horn 



Legs entirely black, or at least with the tibiae never in great part pale. . 2 

 2 Pronotal punctures distinctly separated, nearly as in the preceding. . 3 

 Pronotal punctures extremely dense and rugosely confluent throughout. 9 



3 Elytra dark brownish-rufous to tawny flavate in color 4 



Elytra deep black throughout; anterior parts and scutellum bright 



green 8 



4 Head, pronotum and scutellum dark blue-black, rarely somewhat 



greenish-black as in ursina 5 



Head, pronotum, scutellum and legs very bright green in color 7 



5 Basal bead of the pronotum only narrowly interrupted medially; 

 pygidium smooth and polished, rugulose only toward the lower sides 

 and apex. Body rather narrower in form than in ursina and with a 

 distinctly smaller head; femora with feeble greenish lustre, the tibiae 

 without such lustre except at apex, black, the medial region extremely 

 feebly and just visibly pallescent; elytra dark red-brown, with the 

 pubescence (cf ) sparse and easily lost; head less than half as wide 

 as the prothorax, otherwise nearly as in the male of ursina, except 

 that the deep black clypeus is shorter and with relatively coarser 



