138 QUINCE CULTURE. 
general color is a reddish-yellow brown intermingled 
with gray. The female is larger and lighter colored, 
with antennz more slightly pectinated than the male. 
They fly at night in June and July, and lay their eggs 
on small twigs. Their first choice is the wild cherry, 
and next the apple, but they feed on the peach, quince, 
plum, and quite a number of other trees. 
The full-grown larve are about two inches long. As 
they grow they enlarge the tent, and moult four t mes. 
At maturity they scatter, and often goa long distance 
before spinning the cocoon, in which they pupate in 
from seventeen to twenty days. 
ftemedies.—Tachina flies and ichneumons are their 
parasites. The Baltimore oriole and the cuckoo eat them 
by piercing the tent, leaving their empty skins. A 
spray of any arsenical poison on the foliage will be 
effective. The eggs are easily seen by looking over the 
infested trees any time after the leaves fall, and are 
often in easy reach. Early in the morning and late in 
the day most of the caterpillars are in the tent, and then 
can be easily destroyed. 
THE TINGIs (Corythuca arcuata).—A small bug with 
the thorax and wings spread out ijeaf-like; the fore-legs 
are simple, and the beak reaches to the end of the breast. 
It sucks the juice of the leaves of the quince and other 
kinds of trees, sometimes occurring in sufficient numbers 
to check their growth. ‘‘It winters in the adult stage, 
hiding wherever it can find a chance, and makes its ap- 
pearance in spring quite late, and in small numbers. It 
lays its eggs upon the leaves in clusters, and from these 
hatch the wingless bugs, which feed in company until 
well grown. Late in summer they reach their full — 
growth, scatter about, and finally hibernate.” 
Remedy.—Spray with kerosene emulsion ; in autumn 
burn accumulated leaves and rubbish that furnish win- 
ter quarters. 
