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GROUP XIII. 
The caterpillars which belong to this gronp are provided with 16 
legs, and their bodies are naked or thinly covered with small prickles 
or piliferous spots, from each of which issues one or two hairs; 
they are of some other color than green, and are marked with 4 or 
5 longitudinal lines. 
SYNOPSIS OF GROUP XIII. 
Body marked with only 4 lines. 1 
Body marked with 5 lines. 
With a row of black spots on the venter. 2 
Without these spots. 
Head gray, roughened. 6 
Head black or brownish-black. 4 
Head reddish or yellowish-brown. 
With a row of black spots on the dorsal space. 5 
Without these spots. 6 
1 —Argynnis bellona .—Body pale purplish; on each side of the 
body are two whitish lines; below the upper line is a row of small 
black spots; on each segment is a transverse row of about 6 small 
black warts, each of which is beset by short bristles;. the two warts 
on top of each segment are joined together by a Y-shaped dark 
line; head smooth, black, the face thinly covered with short hairs; 
length 1J- inches. Feeds on Violets. October to April. Suspends 
itself by the hind feet. (D. W. Coquillett.) 
2 —Catocala grynea .—Body ashen brown, sometimes with a reddish 
cast; an indistinct light-colored dorsal line; on each side of the 
body are 2 or 8 indistinct light-colored stripes; on the dorsal space 
is a row of small prickles, those on the posterior part of each seg- 
