234 LLOYD'S NATURAL HISTORY. 



and white above in the female, with a broad regular black 

 border, not indented, which is continued narrowly along the 

 costa of the fore-wings, and is represented by a brown shade 

 along the inner-margin of the hind-wings. Other species have 

 a black band, varying in width, on the inner-margin of the 

 fore-wings, resembling what we find in the genera Nathalis 

 and Eurema. 



FAMILY VI. EQUITID.E. 



Egg, Dome-shaped, flattened at the base, slightly rugose, 

 more ovate in the Parnassiincc, and reticulate. 



Larva. Cylindrical, with a Y-shaped retractile tentacle behind 

 the head;* smooth or granulated, sometimes humped towards 

 the head, not hairy or bristly, but occasionally furnished with 

 rows of fleshy tubercles. 



Pupa. Attached by the tail, generally in an upright position, 

 and secured by a girth round the middle of the body. 



Imago. Of large or moderate size ; wings strong, often tailed ; 

 pattern generally simple and uniform, not variegated, and very 

 rarely with well-marked ocellated spots ; sub-costal nervure of 

 fore-wings four-branched (rarely five-branched) ; lower radial 

 nervure appearing like a fourth branch of the median; median 

 and sub-median nervures connected by a short cross- nervule 

 near the base ; sub-median nervure throwing off a short fork 

 near the base to the inner-margin ; hind-wings with but one 

 sub-median nervure, the lower sub-median, or internal ner- 

 vure, so conspicuous in the Pieridce, being always absent. 

 Six perfect legs in both sexes, the tibiae furnished with a leaf- 

 like projection ; the claws always simple, except in Leptorircus, 

 in which they are sometimes bifid. 



* This is technically called an osrnaterium, and always emits a strong 

 odour. 



