128 



Mr. G. J. Arrow on Cohoptera 



This is the Lirgest and most remarkably accoutred species 

 of its large genus yet known. It is allied to C. Elphenor^ 

 Klug, and C. Anceus, Oliv., and represents in its armature a 

 great development of that type. Tlie clypeus is relatively a 

 little less wide tlian in those species and almost uninterruptedly 

 curved. It is narrower in the male than in the female 

 and the thorax is correspondingly contracted in front. In 

 both sexes the head bears a horn, but without any similarity 

 between the two. That of the male is over 20 mm. long in 

 our specimen, comjjressed laterally so as to be rectangular in 

 section for most of its length, but beyond the middle it is 

 hollowed out on its inner face and the edges of the channel 

 are strongly dent:ite. The horn of tiie female has the form 

 of a crescent att-iched by a short footstalk to the front of the 



Co])ris draco, cJ and 5 , uat. size. 



head. The two extremities are about 8 mm. apart in our 

 examples and the footstalk about 3 mm. long. The thorax 

 in both sexes is coarsely rugose except for a small median 

 posterior area, which is moderately punctured. In the male 

 this median part is strongly humped and divided in front, 

 where it terminates in three obliquely placed teeth on each 

 side. The lateral margin in the ssame sex is furnished at the 

 middle with a large leaf-like or wing-like process, curving 



