167 

 PREPARATORY STAGES OF CATOCALA CARA, GUEN. 



^ By G. H. French, Carbondale, 111. 



Egg. — Diameter .04 of an inch. In shape nearly globular, or 

 a little flattened at the base ; fronn this base to the middle the 

 side is regularly curved. The top is a little depressed and con- 

 tains a little button ; from the middle to this depression the 

 slope is straight instead of curved. Color olive brown, more 

 greenish at first, with white striae, below the middle these are 

 equidistant, but above the middle they are in pairs, the base with- 

 out striae. Duration of this period 182 days. 



Young Larva. — Length .15 inch, width .01 inch, width of 

 head about .015 inch. Legs .12. Head and joint i, rather pale 

 reddish brown, shining ; ocelli dark brown, joints 2 to 5 black- 

 ish brown, pale between the last two joints. Joint 6 is paler 

 reddish brown than the head, the rest of the joints about the 

 shade of the head except that the top of joint 7 is a little darker 

 than the rest. The color on the joints from 6 to 12 is composed 

 of four reddish-brown lines to each side, or eight in all, on a paler 

 ground, the place of the dorsal line being pale. All the legs are 

 whitish. There are small hairs over the body, apparently from 

 the piliferous spots. Duration of this period 3 days. 



After 1st Moult. — Length .20 inch. Ground color of body 

 pale whitish-green, uniform throughout, the eight longitudinal 

 stripes extending the whole length. Feet brown ; tho first two 

 pairs of prolegs showing as points about one-fourth the length of 

 the others. Duration of this period 7 days. 



After 2d Moult. — Length .33 inch. Color very dark brown 

 or almost black, dorsal line whitish, one-fourth the width of the 

 body in the middle, but narrower at the extremities, darker in the 

 middle of joints 4 to 7. Subdorsal, suprastigmatal and substig- 

 matal lines very narrow, feet a little paler than the body. Head 

 concolorous, a white stripe each side of the middle of the face, 

 clypeus and palpi pale carneous ; the cheeks mottled with the 

 same ; jaws brown ; the dorsum of joint 8 with a slight blackish 

 elevation. Venter pale smoky-brown. There are about four 

 more or less distinct wrinkles between the joints. Duration of 

 this period 7 days. 



After 3d MouiL — Length .90 inch. Head more distinctly 

 heart-shaped than before. The whole body black with a series 

 of crinkly whitish or yellowish-white lines, making the body 

 striped with these two shades of color. On the dorsum the yel- 

 lowish white predominates, below the subdorsal black is the 

 prevailing color. The dorsal line is a series of long yellowish 

 white ellipses with the central part black. Between this and the 

 subdorsal line there are two distinct black lines and traces of a 

 third between them in a series of black dots. The stigmata are 

 in a black line ; between this and the subdorsal there are three 



