470 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
New England to Montana and Idaho. Its food plants include jack, 
lodgepole, and ponderosa pines. ‘The larvae are solitary in habit, 
and each bores into a young branch, particularly at the Juncture of 
smaller branches, where a mass of pitch forms over the entrance hole. 
It has a 2-year life cycle. Branches that have been infested break off or 
cause deformities, the injury being more noticeable in open stands. 
For control see P. comstockiana. 
The larvae of Petrova virginiana (Busck) bore into the small 
branches of Virginia pine (Pinus virginiana), and their work is some- 
what similar to that of P. comstockiana. Heinrich (2/7) stated: 
“They differ in habit chiefly in that comstockiana bores only in 
stems of the same year’s growth, while virginiana normally attacks 
the bark of older twigs and branches. The work can be easily recog- 
nized by the large hard nodules of frass-stained pitch found at the 
exit holes of the ealleri les.’ 
The species ranges from southern New Jersey south through Vir- 
ginia, and is often very common in the vicinity of Washington, D. C. 
The larvae pass the winter in the galleries, pupating early in spring, 
and the moths emerge in May. For control see Petrova comstockiana. 
Eucosma gloriola Heinrich (279) is a coppery-red moth with two 
shining gray transverse bands on the forewings. The hind wings are 
dark grayish brown. It has a wing expanse of about 54 inch. The 
larva is a dirty white, with a yellowish-brown head and a round black- 
ish spot on the side of the hind margin; the thoracic and anal shields 
are yellowish. It was first recorded in 1930 in southwestern Connect- 
icut, and now is known to occur in other sections of Connecticut, in 
New York, and in Maine. The moths issue in May. The larvae feed 
during June and July by boring in the center of the shoots of white 
pine, causing 6 or 8 inches of the twigs to die. Pupation takes place 
in the soil. There is one generation a year. This insect attacks the 
side shoots so the principal damage occurs on ornamentals or in plant- 
ings before the crowns close. The dying twigs cause an unsightly 
appearance. No practical control measures are known. 
Proteoteras aesculana Riley is an olive-green moth, more or less 
mottled with yellow and gray, and with some small black markings, 
the wing expanse is from 14 to 34 inch. The larva bores in seeds, 
stems, and terminal twigs of horsechestnut and maple, sometimes 
causing considerable injury during May and June. The moths emerge 
in July and August. This species is common and apparently is gen- 
erally distributed through the northern half of the United States ‘and 
southern Canada. The boxelder twig borer (Proteoteras willingana 
Kearf.) and P. crescentana Kearf. are borers in stems and twigs of 
boxelder and maple. For control measures for these three species 
collect and burn the infested twigs the latter part of June. 
Evora hemidesma (Zell.) is a reddish-brown moth, with a darker 
median band on the forewing. It has a wing expanse of about 14 to 
22 inch. The full-grown larva is dark green, almost black, sparsely 
hairy, with hght- color ed tubercles and a light-brown head. It is about 
3/4 inch long. “This species is distributed from Maine wester ly to Mani- 
toba and southerly to Virginia and Kentucky. The larva is found as a 
common leaf roller on spiraea from May to July. The moths emerge 
in July and August. 
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