394 STATE BOARD OF AGRICULTURE. 



invisible. None of these are plentiful enough to do harm. The tent-caterpil- 

 lars live in great colonies, which make a web or tent in a crotch and feed from 

 that point. They sometimes defoliate large trees or even entire orchards. 



Tents should always be torn out and the larvae destroyed whenever noticed 

 and within reach. Spraying with the arsenites on the foliage surrounding the 

 nest will kill the larvae when young. The egg belts can be gathered and de- 

 stroyed in winter. 



PHYLLODESMA Hbn - GASTROPACHA Ochs. 



P. americana Harr. Seems to occur throughout the State ; but rarely. The 

 larva feeds on apple, cherry, maple, birch, poplar and other trees : adults 

 in May and July. 



CLISIOCAMPA Curtis. 



C. disstria Hbn. The "forest tent caterpillar;" occurs throughout the 

 State, rarely in orchards, more commonly on forest trees. The moths 

 come in June and July. This species has done great injury in northern 

 New York in 1899, but has never caused trouble in New Jersey. 



C. americana Fabr. The common " Tent caterpillar " of the orchard : 

 especially abundant on apple and wild cherry, the young caterpillars 

 hatching almost before the leaves are out and forming the tent in a 

 crotch. Occurs throughout the State in late June and early July. 



ARTACE Wlk. 



A. punctistriga Wlk. Elizabeth, X, 8 (Kp), rare near Newark, Freehold 

 (U S Ag ) : the larva on oak. 



TOLYPE Hbn. 



T. velleda Stoll. The " lappet moth." Have seen larvse from almost all 

 parts of the State ; but always singly : it feeds on cherry, apple, pear, 

 maple, oak, elm, lilac, etc. The moth flies in September. Caldwell (Cr), 

 Newark (Sb). 



T. laricis Fitch. Newark at light (Ang), rare near N. Y. (Bt). The larva 

 feeds on pine, larch and hemlock and the insect should be distributed 

 throughout South Jersey. 



Fig. 17ti. — Forest tent caterpillar, Clisiocavtpa disstria. 



Fig. 177. — Clisiocatnpa disstria : b, female moth ; c, single egg from above ; d, eggs from side ; c and 

 rfenlaged. 



Fig. 17.x. — < )rthard Tent-caterpillar : showing larva, base of tent, cocoon and egg mass. 



Fig. Vft.—Clitiocampa americana, female. 



Fig. 180. — White marked Tussock moth, Orgyia Uucostigma, male. 



Fig. 181. — Larva of white marked Tussock moth. 



Fig. 182.— White-marked Tussock moth ; a, female on its egg mass ; b, young caterpillar suspended on 

 thread. 



Fig. 183. — White marked Tussock moth, purpse; b, male; c, female. 



