124 QUINCE CULTURE. 
by its parasitic enemies. The largest, and perhaps the 
commonest, is the Long-tailed Ophion (Ophion macru- 
rum, Linn.). It is a large yellowish brown ichneumon, 
that lays its eggs on the skin of the larve, to which they 
adhere by the gum surrounding them, and hatch in a few 
days. A two-winged tachina fly is also often found as a 
parasite on this caterpillar. Its larva is a fleshy and foot- 
less grub, of a translucent yellow, and about half an inch 
long. 
16. Corton Turt (Lagoa crispata, Packard).—This is 
a very singular variety of the caterpillar family, which 
derives its name from the 
crinkled, woolly hairs on the 
fore wings of the parent 
t+ moth. ‘The thorax and 
4/7 lower part of the sides are a 
Wey; slate-colored, dusky orange. 
#7 §=©It makes its cocoon by inter- 
weaving its long hairs with 
‘ — its silk. The cocoonis long, 
aches ean ic) ori cylindrical, and dense. The 
ee oecey eadlvanced growth; ,me 8Kkin Of the very #MEmmape 
ar aro tg: is found protruding from 
the cocoon after the moth has escaped. When I first 
saw the Lagoas on the quince trees, the caterpillars were 
about athird of an inch long and looked like so many tufts 
of white cotton. Hence the common name I have given 
it. After they had moulted, and grown to about three- 
quarters of an inch in length, they appeared less hairy, 
the back being wide in proportion to the length, with the 
corrugated parts conjoined, reminding one of a trilobite. 
17. THE AppLE-TREE APHIS (Aphis mali, Fabr.; 
Aphis malifolia, Fitch). The name Aphis means to 
exhaust, and is well applied to this little insect, which 
proves itself a great exhauster of vitality on all trees on 
which it lives. They have small beads, armed with 
