234 LLOYDS 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 Eureina. 



FxVMILY 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 tibice furnished with a leaf- 

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

 in which they are sometimes bifid. 



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

 odour. 



