OX THREE ABERRATIONS OF LEPIDOPTERA. 



275 



22. Three Aberrations of Lepidoptera. By J. J. Joicey, 

 F.L.S., F.Z.S., F.E.S., and G. Talbot, F.E.S. 



[Received June 20, 1917 ; Read November 20, 1917.] 



The specimens described herein are in the collection of Joicey. 



A Melanic Aberration of Catagramma cynosura Hew. 



(PI. I. fig. 3.) 



Upperside of fore wing with distal red band much obscured by 

 dark scaling and showing faintly ; apical spot absent. Hind winy 

 with red basal patch reduced and limited by vein 6. 



Underside of fore wing with blue subterminal line thickened 

 and forming a series of 6 proximally pointed spots ; subapical 

 yellow streak represented by a thin and shorter line. Yellow 

 discal band narrower and reduced proximally. Hind wing much 

 blackened ; yellow costal patch reduced, yellow band encircling 

 the disc only represented by a short streak before vein 2, discal 

 transverse streak absent, distal series of blue spots nearer the cell 

 and smaller. 



The specimen bears the locality " Peru." 



Philosamia cynthia Drury. 

 Aberration. 



This remarkable aberration is a § specimen bred in Trinidad, 

 B. W. L, and received from there by Mr. Ernest Swinhoe. 



The ground-colour of the wings is much darker and in the 

 distal area is nearly black, excepting the grey marginal border. 

 The white bands are very broad. On the fore wing the post- 

 discal band is united with the basal bands at vein 4 and the 

 submedian, the space between these being white ; the distal 

 widening of the lower basal band leaves only a small patch of 

 ground-colour on the inner margin ; similarly the widening 

 of the upper basal band and the proximal widening' of the post- 

 discal band reduces the discal lunule to a small ovate spot which 

 is obsolete on the left wing. 



The bands of the hind winy are united anteriorly so that the 

 space between costa and origin of vein 5 is white ; the discal 

 lunule is very small on the left wing and minute on the right 

 wing. The distal normally pink scaling on both wings is replaced 

 by grey. 



Abdomen wholly white ; head and tegula? white. 



Papilio neophilus parianus R. & J. 



Dichromatic A berration. 



This is an example of erythrism in a ^specimen which has 

 the patches on the fore wing salmon-pink instead of green ; the 



