INSECT ENEMIES. 115 
destroyed after they separate, by their large droppings. 
The larvee are attacked by two parasites; one a very small, 
unnamed, four-winged fly, the other the Long-tailed 
Ophion (Ophion macrurum, Linn.). 
13. THe VAporer Morn, THE WHITE-MARKED TUS- 
sock Morn (Orgyia leucostigma, Smith and Abbr.).— 
This moth takes the name Orgyia from a word signifying 
Fig. 101.—LARVA OF WHITE-MARKED TUSSOCK MOTH. 
to stretch out the hands, on account of its resting with the 
fore legs extended. The English name, Vapor Moth, is 
applied as descriptive of the males ostentatiorsly flying 
by day, or vaporing, when most other moths keep con- 
cealed. The name White-marked Tussock Moth is ap- 
plied as descriptive of the four little hairy tufts on the 
a) 
ae. 
yg 
s 
\ 
mg DES 
P| 
sp 
ior} 
~~! 
® 
ra 
.& 
co 
~ 
es 
5 ie EC, 
Fig. 102.—Pupa. Fir. 193.— Male. 
WHITE-MARKED TUSSOCK MOTH. 
back of the caterpillar. On each side is a row of smal!or 
tufts of fine, yellow hairs. A narrow dark stripe runs 
along the back, and a wider dusky stripe runs along each 
side. There are two long black plumes on the first ring 
and one on the top of the eleventh ring. They are 
