160 
of deep yellow tuberculate points; anal horn black, yellow at the 
sides at the base, studded with blunt points; segment 1 tuberculate, 
the surface of the rest of the body transversely wrinkled; venter 
deep reddish purple, shading to blackish over the feet; head green; 
length If inches. Feeds on Snowberry (Symphoricarpus ). Spins a 
cocoon. (A. R. Grote.) 
10 —Sesia diffinis .—Body covered with minute whitish prickles, 
light blue on the back, the sides green; on top of segment, is a 
transverse gold-colored ridge; anal horn black, the base yellow; 
spiracles black with a blue annulation; head smooth, light blue; 
venter brownish; length If inches. Feeds on the Tartarian Honey¬ 
suckle and Feverwort (Triostium perfoliatum ). May to July. Spins 
a cocoon. (D. W. Coquillett.) 
GROUP VI. 
The caterpillars belonging to this group are provided with 16 legs, 
and are usually covered with spines; some are perfectly smooth 
while others are covered with small prickles; all of them have more 
than one horn or spine. 
i 
SYNOPSIS OF GROUP VI. 
The 2 horns on segment 2 longer than any of the others. 
Head black. 
Body black or brownish, with eight yellow lines . 1 
Body bluish purple, with two yellow lines... 2 
Head never black. 
Body marked with transverse bands. 3 
Body destitute of transverse bands. 4 
The 2 horns on segment 2 no longer than some of the others. 
Body marked with transverse bands or rings. 
Body green, ringed with pale blue. 5 
Body black, ringed with yellow. 
Last segment nearly black. 6 
Last segment yellow. 7 
Body destitute of transverse bands or rings. 
Body yellowish-white. 8 
Body black. 
Dotted with white. 
With a stigmatal yellowish stripe. 9 
Without this stripe. 
