Orneocles, Epermenia, Chrysocorys, and Pterophorus. 141 



forming a crown-like circle, and reminding one, in some 

 degree, of the similar processes in the ova of some Hemi- 

 pitera. The flat surface within these is marked by 

 radiating impressions, proceeding from a small central 

 micropylar rosette. The outer surface of the egg is 

 covered with rather deep, irregular depressions, sepa- 

 rated by rounded ridges, which, though irregular, have 

 a distinct tendency to be hexagonal, with the longer axes 

 of the spaces parallel with that of the egg. To escape, 

 the young larva eats out the flat top within the coronet, 

 and leaves the egg apparently little damaged. The newly- 

 hatched larva is a white or colourless little atom. It is 

 possible, however, to observe that the posterior dorsal 

 tubercle carries a long smooth hair, directed rather back- 

 wards, the tubercle being raised round the base of the 

 hair into a high conical projection, and the hair itself 

 being longer than the diameter of the larva ; the anterior 

 trapezoidal is a much smaller hair, rising in a smaller 

 tubercle, situated in the front base of the cone of the 

 posterior; the supraspiracular is an equally small hair 

 in a moderately-developed tubercle; the subspiracular 

 tubercles are a reproduction of the trapezoidal, a large 

 posterior hair on a high cone, and a smaller one in front, 

 one directed backwards and the other forwards. I have 

 not clearly defined the prologs ; the anterior and posterior 

 hairs are much longer. 



As the larva grows, the subspiracular hairs retain their 

 simple character, but assume the appearance of the tines 

 of a pitchfork on a common raised protuberance; the 

 dorsal hairs, however, acquire a very special character. 

 They continue to be a larger posterior sloping backwards, 

 and a shorter anterior lying forwards, their bases are 

 almost conjoined, and rise into a distinct peduncle. The 

 hairs terminate in a sharp point, but on the upper aspect, 

 near the apex, have a lancet-shaped transparent flange ; 

 and through the peduncle and down the hair is what 

 looks like an inner tube, arising from the internal tissues 

 of the larva, and terminating between the flange and 

 apex of the hair. There is sometimes fluid at apex of 

 hair provided through this tube. The surface of the 

 hairs is finely waved or granulated. The spiracles are 

 at the apex of a large brown chitinous mammilla. The 

 ventral prolegs have a short conical pedicel, a rounded 

 boss at apex, carrying six hooks regularly disposed around 



