LÉPIDOPTÉROLOGIE COMPARÉE 38 I 



line, the snioky suffusion increases in intensity and m il can be 

 discerned the remains of the subspiracular stripe which is very 

 indistinct except on the first subsegment; there the filling in and 

 edging are both somewhat clear and regular. Just beneath the 

 yellow hirtarïa spot and line, the spiracular suffusion becomes 

 more intense. 



The legs are pinkish, black spotted on ail the joints except the 

 last, which only bears one or two black dots. The base of the 

 legs is darker, but laterally, are yellow freckles. The legs them- 

 selves, on the inner side are yellowish but the body area between 

 is purplish, marked with a large brown spot before each pair of 

 legs. 



Variation of larva. 



The variation follows the same course as in denhami, but there 

 are one or two little points in which it differs. The main one 

 is size. There is much greater différence in size amongst the 

 various individuals, because this form produces enormous wing- 

 less females, fully provided with very large ova. In this form, 

 too, the yellow transverse bars are more inclined to be represented 

 by two fine parallel black lines. Possibly too, there is a greater 

 variation both in the colour, and in the appearance of the spira- 

 cular stripe, which is more prone to be orange red in harrisoni. 



Habits of larva. 



The habits of the two larvae are very similar. Harrisoni, howe- 

 ver, sticks doser to its f ood, and is less apt to drop when alarmed. 

 Denhami feeds up much more rapidly, and is buried in the soil 

 about ten days before harrisoni larva?, which hatch about the same 

 time. In its cocoon spinning and other points in connection with 

 its pupation, it behaves exact! y like denhami. 



