i8o LEPIDOPTERA. 



and in one sheltered Iiollow of the hills, facing the sea, and 

 crowned by some woodland, he found, on the 29th of August, 

 this species emerging commonly — none having been there 

 during the previous ten days — and on the 30th and 31st it 

 became so abundant that hundreds might have been taken. 

 These specimens are smaller and more slenderly and deli- 

 cately marked than those of the June brood. The Rev. E. N. 

 Bloomfield has repeatedly seen specimens of the second 

 emergence in the same district. It appears also that 

 Mr. F. W. Hawes, having .obtained a large number of fertile 

 eggs of this species, which duly hatched, found that four 

 of the larva3 soon outstripped the rest, and, growing 

 rapidly, fed up in the same summer, the imagines emerging 

 in September, while the rest of the larva=! settled down, when 

 quite small, to hybernate. We may, therefore, conclude that 

 this species is far more readily induced by warmth to produce 

 a second brood than A. Euftli7-osipu\ although the latter is 

 the first to appear in the spring, and its larva3 consequently 

 commence earlier to feed ; and that it is normally double- 

 brooded in the warmest spots of our south coast. 



Larva 1 inch in length, broadest about the fifth and sixth 

 segments, and tapering very slightly to the tail. Head rather 

 notched at the crown. Body with six rows of thick conical 

 semi-translucent branched spines from the fifth segment, the 

 third and fourth having but four, and the second but two, 

 which are of double the length of the rest, and, after taper- 

 ing, become thickened again at the tips, so that, standing 

 forward and a little apart, they rather resemble the tentacles 

 of a snail. The spines are ochreous, tinged with pink, those 

 in front tipped with black, and the whole having the branch- 

 ing bristles black. Body velvety, smoky pink ; dorsal line 

 dark brown, expanding and contracting twice on each 

 segment ; in front of each sub-dorsal spine, and clasping 

 it, is a velvety black spot delicately tinged with whitish, 

 while behind each spine is a blackish interrupted streak ? 



