South- American Coleoptera. 297 



parce fortiter punctatis, guttis nonnullis albis notatis, sutura 

 virescente, apice truncato, angulo externo spina acuta valida 

 armato, singulis elytris costa sat elevata basi haud attingente. 

 Long. 5 lin. 



Bright coppery, the middle of the elytra and the sterna 

 shining with bright green. The basal joint of the antennae 

 is stout, subcylindrical, narrowed only at the extreme base, 

 not reaching to the base of the thorax ; the third joint is one 

 quarter longer than the first, slender ; the fourth is about the 

 same length as the first ; the following joints gradually become 

 shorter. The head is smooth in front, with a line of white 

 pubescence on each side ; there are some strong punctures 

 behind the eyes. The thorax is as long as broad, subcylin- 

 drical, scarcely constricted before the middle, a little narrower 

 behind the small sharp lateral spine, with strong punctures 

 scattered over the surface ; near the base there is a strongly 

 impressed transverse line, terminating at each end in a deep 

 fovea. The elytra are one third broader than the thorax, 

 regularly narrowed posteriorly, with no lateral carina, but 

 with a strong one commencing near the base and terminating 

 in the apical spine ; each elytron has five small white pubes- 

 cent spots within the carina, and two or three oblique white 

 streaks about the middle of the elytron. The metasternum 

 is green, smooth, with some large punctures at the side. 

 The abdomen is bright coppery, smooth. 



Hah. Chiguinda. 



Ites, n. gen. 



Antennge reaching a little beyond the middle of the elytra ; 

 the basal joint robust, elongate ; the second joint much more 

 slender, two thirds the length of the first, sparingly pilose ; 

 the third a little shorter than the second; the following joints 

 gradually diminishing in length. Eyes almost completely 

 divided. Thorax transverse, a little constricted before and 

 behind the middle. Elytra expanded from the shoulders, 

 arcuately narrowed posteriorly to the apex ; resembling in 

 general outline some species of Dolichotoma (Cassididse) , 

 without costse, but with shoulders obtusely raised, velvety. 

 Prosternal process extremely narrow ; the mesosternal mode- 

 rately narrow, declivous in front. Tarsi broad ; the claws 

 fissile. 



This remarkable insect, although clearly allied to the Am- 

 pliionychi) differs in having the second joint of the antenna? 

 elongate and a little longer than the third. To suppose that 

 the second joint is imbedded in the apex of the first, and that 

 what I have termed the second joint is really the third, would 



