LÉPIDOPTÉROLOGIE COMPARÉE 455 



g-enerally broad though rather short. When thcy are very distinct, 

 they are clearly edged m black and the edgmg of the stripes be- 

 come stronger. Before thèse bars, and sometimes m a very concen- 

 trated form, may sometimes be seen the black suffusions found in 

 hirtana and when thèse suffusions are very clear, the pattern they 

 form, stands out very distinctly. When thèse bars are absent, 

 the médian stripes are a little broader on the last subsegments 

 and tend to be filled in then with orange. Some individuals, 

 which cannot be readily distmguished from larvae of denhami, 

 hâve fairly regular stripes, and lack the black spots m the ground 

 colour. The collar is présent, but only as small yellow spots at 

 the ends of the various stripes. The spiracles are large and 

 black and, m shape, broadly oval. They are surrounded by pale 

 yellow, especially on the prothorax and on the last abdominal 

 segments. 



On ail the larva?, the two black warts on the eighth abdominal 

 segment are very distinct but never so large nor so pointed as 

 iwhiriana. The yellow spots on the curious flange-like rmg after 

 this, are quite as conspicuous as m hirtaria. The anal plate is 

 yellowish m colour and is heavily spotted with black. Termi- 

 nally, it is rounder than m hirtana. Some of thèse plates in 

 colour, are nearer to hirtaria and then are blackish, with yellow 

 spots. In thèse spécimens, the two larger spots bearing hairs are 

 very clear. 



The spiracular stripe is fairly broad and is more or less distinct. 

 On it, but less obvious on the last abdominal segments, are the 

 yellow tnangular spots derived from grœcaria. Just before 

 thèse spots, as in hirtaria, the stripe is broad and yellow and 

 dips somewhat. It then, as we proceed f orward, becomes narrow 

 and indistinct, but is fairly broad just before the preceding spot. 

 It is broad and well marked on the thorax, although greatly 

 broken, and lias the same charactenstics on the last abdominal 

 segments. In no manner does it rcsemble hirtaria stripe, except 

 in the dash before the large spot. 



The ground colour of the underside of the larva is a dull 



