456 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
nial plants and brambles, and few are of much economic importance. 
The grape plume moth (Pterophorus perisce lidactylus Fitch) is 
frequently abundant locally in the Northeastern States on wild and 
cultivated grape. The moth is yellowish brown marked with dull 
whitish streaks and spots, and has a wing expanse of about 34 of an 
inch. The eggs are deposited singly or in groups of 2 to 10 in the 
small crotches on old canes. There is one generation annually (Whit- 
comb and Tomlinson, 437). The larvae are greenish white and hairy, 
and about 14 inch in length when full grown. They feed on the 
tender, expanding leaves early in the spring. Each larva webs to- 
gether one or more terminal leaves and blossom clusters in which it 
lives. They become fully grown late in May or June and the moths 
emerge in June and July. 
Hand picking and destroying the webbed leaves containing the 
larvae has been recommended as the simplest method of control for 
many years. Whitcomb and Tomlinson (437) reported that a 
dormant application of either 1 percent of sodium dinitro cresylate 
or oil emulsion diluted to contain 3 percent of actual oil gave good 
control. 
Famiry MOMPHIDAE 
One species of Momphidae, Chrysoclista linneella Clerck, the linden 
bark borer, has attracted some attention in recent years. This is a 
small orange and black moth of European origin, fir st recorded in this 
country in "1928, when it was found infesting linden trees near New 
York City. It is now known to occur in the southeastern part of New 
York, the northeastern part of New Jersey, and in the vicinity of 
Boston, Mass. So far as is known the insect has been found infesting 
only European linden in this country. The full-grown larva is about 
14 inch in length. The head is hght brown, and the body whitish, 
with the contents of the alimentary tract visible through the integu- 
ment, 
The moths emerge in the spring, usually between the last week in 
May and the middle of June. Although the eggs have not been ob- 
served, it is probable that they are deposited on the branches of their 
food plant, and upon hatching the young larvae bore directly into 
the bark. Their work is confined to tunneling i in the corky and green 
portions of the bark, principally in the trunk and the undersides and 
basal portions of branches. The young larvae feed for some time 
during the summer, hibernate in their galleries, and complete their 
feeding in the spring. Pupation takes place in cells formed in the 
galleries close to the outer surface of the bark. This insect probably 
causes little damage, except for furnishing possible modes of entrance 
for secondary organisms. 
Famiry GELECHIITDAE 
The Gelechiidae are a large family of moderately small moths. The 
forewings are narrow, and the hind wings more or less trapezoid: al, 
usually with the outer margin concave e and sometimes quite emarginate 
with a projecting apex. The larvae vary greatly in habits, and many 
species are very destructive. Some feed between spun leaves or 
shoots, some are leaf miners, and others feed in seed heads or roots. 
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