90 ACADEMY OF NATURAL SCIENCES 



Head and thorax green, a little varied with violaceous : an- 

 tennae black at tip : labrum and mandibles at base above, white : 

 elytra abruptly rounded at tip, punctured, a few larger punctures 

 at base ; brilliant [ 141 ] reddish-brassy; region of the scutel from 

 the middle of the base to beyond the middle of the suture, green : 

 beneath blue varied with violaceous. 



Length two-fifths of an inch. 



A rather small, but very pretty species ; it was brought from 

 the Arkansa by Mr. Thomas Nuttall. 



2. C. FULGIDA. — Above red-cupreous, brilliant ; elytra with two 

 lunules and an intermediate refracted band. 



Inhabits Missouri Territory. 



Body, above red-cupreous, highly polished : head hairy before, 

 varied with green and blue each side and before : labrum and ex- 

 terior base of the mandibles white : antennas black at tip : thorax, 

 impressed lines blue : elytra densely punctured ; a dilated lunule 

 at the basal margin, a dilated refracted band behind the middle, 

 and a dilated lunule at the tip, white : beneath, hairy green. 



Length less than half an inch. 



In the dilated appearance of its lunules and band, this species 

 very much resembles C. formosa, but it is a much smaller insect, 

 much more highly polished, and not margined with white as in 

 that insect. It inhabits near the mountains on the Nebraska 

 (Platte) and Arkansa rivers. 



3. C. LIMBATA. — Elytra white, suture, oblique line and dot 

 green, exterior and basal edge bluish. 



Body green, varied with blue and purple, and with cinereous 

 hair : antennse black at tip : labrum, and exterior and superior 

 base of the mandibles, white : thorax hairy each side ; indented 

 lines violaceous: [142] elytra white, a green sutuval vitta nar- 

 rowed behind, an oblique irregular line behind the middle, and a 

 small triangular dot before the middle, green ; exterior edge and 

 basal edge bluish-green or violaceous : beneath hairy : venter 

 purplish. 



Length less than half an inch. 



This species, at first sight, resembles C. dorsalis, but is very 

 distinct in its markings and in the form of its thorax. Found on 

 the Nebraska (Platte) and Arkansa rivers. 



[Unknown to me. — Lec] 



[Vol. III. 



