340 Goleopterological Notices, VIZ. 



CAI.OSOMA Weber. 



The following species, apparently hitherto nnclescribed, have 

 been received from time to time from various sources. 



C marginalis n. sp. — Elongate and parallel, moderately convex, deep 

 black, without metallic lustre except in the narrow concave elytral margins, 

 which are violaceous ; surface shining as in luguhris. Head less than J^ as 

 wide as the prothorax, feebly rugose toward the eyes but not distinctly punc- 

 tate at any part ; epistomal impressions narrow but very deep ; antenna; mod- 

 erate, the third joint fully 3 times as long as the second. Prothorax trans- 

 verse, fully twice as wide as long, widest just behind the middle where the 

 sides are bluntly angulate, thence sti-ongly convergent and evenly arcuate to 

 the apex and rather more convergent and straight to the base, meeting the 

 latter in an obtuse though very well marked angle, the immediate vertex of 

 which is prominent and acute ; base and apex equal in width, the former 

 broadly arcuate, feebly sinuate at each side, the middle much more advanced 

 posteriorly than the basal angles; disk rather feebly but evenly convex, broadly 

 impressed laterally toward base, the side margins defined merely by a thick re- 

 flexed bead ; median line fine but distinct ; surface smooth except a few fine 

 irregular creases and wholly impuncfcate. Elytra elongate, nearly twice as 

 long as wide, }^ wider than the prothorax, only just visibly wider at apical 

 third ; side margins moderately wide, becoming very fine at the humeri ; sur- 

 face smooth, moderately convex, with equal and wholly unimpressed series of 

 extremely minute and subeffaced punctures, with a few scattered coarse punc- 

 tures toward base, the lateral margin rather strongly and somewhat distantly 

 punctate and with an entire series of minute elevated granules ; three dorsal 

 series effaced and barely traceable. Legs moderate in length ; deep black 

 throughout. Length 26.0 mm. ; width 10.0 mm. 



Arizona ? 



The single male from the Levette cabinet, without locality 

 label, represents a species allied to luguhris, but differing in its 

 much narrower and more elongate form, violaceous elytral mar- 

 gins, relatively broader prothorax and absence of punctures on 

 the head. The anterior tarsi are rather strongly dilated, with 

 the first three joints densely pubescent beneath, and the hind 

 trochanters are simple. 



C. spousa n. sp. — Moderately stout, the head and prothorax very small 

 when compared with the elytra ; integuments deep black throughout, with- 

 out trace of metallic coloring at any part, the surface strongly shining and 

 very smooth. Head small though rather more than }-'2 ^-s wide as the prothorax, 

 feebly rugulose, finely and sparsely punctulate, the epistomal impressions mod- 

 erate ; labrum transverse at apex, with a small rounded median notch near 

 which the surface is deeply impressed and finely pubescent, the setigerous 

 punctures coarse, 4 in number ; antennae rather short, less than % as long as 



