p. PANDORUS AND ACHEMON 109 



dorus. Pandorus was noticeably stouter than achemon 

 and liad a rounder head. Achemon'^s head was much 

 more distinct from the thorax and more slender, form- 

 ing an easy mark by which to distinguish the two 

 species. These pupae are easily disturbed and writhe 

 and roll over and over when touched, or even exposed 

 to the air, at first. Later they become more quiet, but 

 still move the abdomen when held in a warm hand. 

 Out of doors the pupae are formed in cells under- 

 ground, but they do not need earth in tin boxes unless 

 they exude more fluid than usual. One achemon larva 

 spun a few threads of silk over a little earth which 

 was in his tin — the only instance. 



The moths are very beautiful, and very unlike in 

 color. Pandorus has shades of rich olive-green, the 

 dark shades being especially velvety. The fore wings 

 have patches of pale pink, varying much in depth of 

 colo]', and sometimes merelj^ suggested. The hind 

 wings have, each, a pale pink patch, a black patch, and 

 some lines. The under side is of a yellower green. 

 The antennae are light above, rust-colored on the under 

 side, and are ciliate in the male, while those of the 

 female are simple. 



Achemon has the head, thorax, and abdomen ashes- 

 of -roses, the patagia velvety brown, the antennae 

 cream-colored above and rust-red beneath, and curved 

 back at the tip. Those of the male are ciliate, those of 

 the female simple. The fore wings are ashes-of-roses, 

 with dark brown lines and spots ; the hind wings pink 

 at the base, having the margin ashes-of-roses, with a 

 series of dark brown spots. The under side of both 

 wings is rust-colored, flushed with pink. 



