I.NIK M LO G I C A I, C A 1) 1 N El 



GONEPTERYX. Leach. 

 Family PAPILlOXIDsE. Leach. 



Generic Character. Antenna short, gradually 

 thickening into an obconic club : palpi short, much 

 compressed, the last joint very short : feet alike in 

 both sexes, all with a bifid or unidentate nail : wings 

 angulated, large, the hinder ones grooved to receive 

 the abdomen : chrysalis angulated, with a thread 

 round the middle. 



Sq 1. Gonep. Rhamni. The upper surface of the 

 wings of the male is of a sulphur-yellow, and of 

 the female greenish-white, with a dusky spot at 

 the base of the wings, and an orange or fulvous 

 spot in the centre, and minute ferruginous dots 

 on the margin, the male beneath is greenish, the 

 female paler: the abdomen is black above and yellow 

 beneath ; its base and thorax thickly covered with 

 long glossy white silken hair : the legs white, an- 

 tennae reddish. 



Expansion of the wings, 2 inches to 3 inches 6' 

 lines. 



A curious variety, approaching to the Gon. Cleopa- 

 tra, has been figured by Mr. Curtis in pi. 173. 



The caterpillar feeds on the Buckthorn ; it is 

 smooth and green, with a darker line along the back ; 

 the pupa is gibbous, acuminated before, suspended 

 in a vertical position on a branch, with a thread of 

 silk wound round its middle as a support. The per- 

 25-5 58 



