286 SYSTEMATIC ARRANGEMENT. 



the most whimsical figures in various directions ; 

 sometimes projecting over the head like a helmet, 

 at others forming a tail, which looks quite artificial, 

 and again assuming the character of ears or the horns 

 of animals." 



Fig. 1 . C. globularis hears a cylindrical horn on the 

 anterior part of the thorax, divided into four branches, 

 each of which terminates in a hairy hall ; head black ; 

 abdomen fulvous ; feet yellow. Length about three 

 and a half lines. Fig. 2. C. furcatus, a larger species 

 five lines in length ; the prothoracic expansion turned 

 backwards, and projecting from the body, the apex 

 bifurcated; it is a native of Brazil, the former of 

 Surinam and some other parts of America. Fig 3 

 represents a new and singularly monstrous species 

 from Mr. Hope's collection, who obtained it from 

 that of the late Rev. L. Guilding. Mr. Westwood 

 names it C. biclavatus. The colour is obscure brown ; 

 prothorax very large, the frontal part elevated into 

 a long thick punctate and setose horn, the tip of 

 which is dilated into a rounded knob; the middle 

 part also elevated into a similar horn, but shorter ; 

 tegmina brown; at the posterior angle there is a 

 pale spot, as well as in the middle of the posterior 

 margin. Length three lines ; expansion of wings six. 

 A native of South America. 



Latreille includes among the homopterous hemip- 

 tera the GALLINSECTA, comprising the family coc- 

 cidoe ; also the APHID^E, containing Psylla, Aphis t 

 and Thrips. Mr. Haliday has recently formed the 

 latter into a separate order, which he names Thysan- 

 optera. 



