THE CANADIAN ENTOMOLOGIST. 109 



darker than at the beginning of the period. Duration of this period six 

 days. 



After 3rd Moult. — Length .85 inch. Marked very much as in the 

 preceding stage, stripes and mottlings purplish black, this color enough 

 paler in the middle of the body to be purple, and jet black at the 

 extremities, the two blending into each other and arranged in fine long- 

 itudinal stripes, each of which has a paler centre but which is not so pale 

 as the alternating whitish stripe ; the dorsum paler than the sides. 

 Piliferous spots more prominent, black, the very short hairs black ; head 

 striped with broken white lines as before ; ventral spots prominent only 

 on the middle joints ; thoracic feet pale. The lateral fringe begins to 

 show. Duration of this period three days. 



After 4th Moult. — Length 1.20 inches. Striped with black very much 

 as before, but each stripe composed of three indistinct lines, making the 

 body pale on joints 5 to 8 and the anterior part of joint 9 and the pos- 

 terior part of joint 10, the rest of the joints darker; the light shade is 

 lilac tinted with a yellow tinge between the joints from the middle of the 

 body back ; joints 2 and 13 so dark as to obliterate the stripes. Head 

 striped as before, but the dark is orange shading into black towards the 

 mouth ; legs orange ; pilifirous spots on the dorsum black with yellow at 

 the base, the lateral ones yellow ; the hairs on the dorsum black, on the 

 sides and head pale yellowish ; a black transverse patch on joint 9 

 between posterior pair of dorsal piliferous spots ; eyes black ; ventre pale 

 yellow, a yellowish black spot in the middle of each joint ; the substig- 

 matal stripe not separable into lines but irregularly mottled. Duration 

 of this period five days. 



After 5th Moult. — Length 1 60 inches. Color pale purplish red 

 mottled with black, in some more or less of a yellowish tint, rather dis- 

 tinctly arranged in five light and four dark stripes, the mottlings being 

 thicker in the dark stripes, the pale stripes with darker centres, the outer 

 edge of the pale being almost free from black but mottled in shades of 

 red ; the dorsal stripe with the dark in ellipses that have their broadest 

 part between the joints ; piliferous spots on joint 2 pale yellowish, almost 

 white, tipped with black ; those on joint 3 to 4 white ; those on the 

 dorsum of the other joints dark yellow, pale at base ; those on the sides 

 pale yellowish ; the posterior pair of dorsals on joint 1 2 very much 

 enlarged ; all large and prominent, each with a short black hair ; joint 9 



