VADE MECUM. 65 



Genus Gonepteiiyx, pi. I, fig. 2. 



Antennee rather short, with a tapering rather compressed 



obscure knob ; joints less than tliii-ty. 

 Palpi longer than the head. 

 Forelegs perfect ; cubit unarmed. 

 Claws short, bijid, without foot cushions. 

 /flngs angular ; primari/ rather falcated subtriangular, with 



a slight bay in the anterior margiu ; secondary between 



ovate and wedge-shaped, internally forming a grove to 



receive the abdomen. 

 Egg unknown. 

 Caterpillar naked. 

 Chrysalis subangular, hunched, suspended and also loosely 



girted ; head-case beaked.' 

 De Geer 1. pi. xv. fig. 1, 2. 

 HUbner Schiuet. pi. ixxxviii, c. d. 



GONEPTERYX RHAMNl, BRIMSTONE. 

 Leioin, pi. 3\ . Donovan, v. 6, p. liB. Duncan, pi. 5, fig. I. 



Butterfly. Wings brimstone-coloured, each with a dot 

 above yellow, below ferruginous, the margins, especially the 

 costal, dotted witli ferruginous. Underneath greenish. The 

 female differs from the male in the wings on both sides, being 

 paler or approaching to greenish white. N. B. The wings 

 are sometimes altogether of a pale green. 



Caterpillar. Pale green, with black dots on the back, 

 brighter in the sides, with a faint white lateral stripe. 



Chrysalis. Greenish with two bright yellow stripes on 

 the sides. 



• The beaked head-case termiuates in a single process. 



