147 
GBOUP i. 
The caterpillars belonging to this group are provided with from 
10 to 14 legs; their bodies are either naked or thinly covered with 
piliferous spots, from each of which issues 1 or 2 hairs. 
SYNOPSIS OF GROUP I. 
Body provided with 14 legs. 
Anal legs wanting. 1 
Anal legs present. 
Body with black piliferous spots. £ 
Body destitute of these spots. 6 
Body provided with 12 legs. 
Ground color never green,. 4 
Ground color green. 
Head brown. ” 
Head green .. b 
Body provided with only 10 legs. 
With pair of horns on top of segments 5 and 6. .... ' 
Without these horns; body yellow, with ten black lines. c 
1 —Ccelodasys unicornis— First 3 segments pale green, marked 
with a double dorsal brown stripe; remaining segments reddish 
brown; on top of segment 4 is a high projection, divided at the 
tip into two points, each bearing a short divergent hair; segment 8 
slightly humped ; between this hump and the projection on segment 4 is 
an elongated white spot, constricted at the middle, and marked with 
pale red lines; segment 11 very slightly humped; between this hump 
and that on segment 8 is a Y-shaped white spot opening posteriorly; 
last segment destitute of legs; head green, marked with red, and 
with two black stripes on the face. Feeds on Hazel, Apple, Plum 
and Checkerberry. July to September. Spins a cocoon. (J. A. Lintner.) 
