the larva (figure 13)
is a typical looper, yellowish brown to greenish black with two yellowish
stripes, about 1.2 inch (30 mm) long; the female moth is wingless, gray
with black dorsal line; one generation per year.
hosts, heavy on live oak in Texas; skeletonizes leaves at branch tips;
may devour all but midribs and large veins; outbreaks can occur on shade
trees and forested areas; reduces tree vigor and growth.
Erannis tiliaria; the larva (figure
14) is a looper-type, yellow with brown head and 10 wavy black lines
on dorsum,1.5 inches (37 mm) long; female moth is wingless, yellowish
gray with two rows of black spots; one generation per year.
hosts, heavy on white oaks in South; partial feeding on individual leaves
(ragging) is typical, complete defoliation occurs during outbreaks; outbreaks
less common in South than in North; reduces tree vigor and growth.
the larva (figure 15) is greenish
brown with four pink stripes, a pair of long, curved "horns"
is on the second thoracic segment, 2 inches (50 mm) long; the adult is
a brownish-red moth, white spot on forewings; two generations per year.
and white oaks; leaves eaten except leaf stalks and midribs;stripped branches
and trees common, entire stands less common; defoliation in summer and
fall; less common than orangestriped oakworm, except in bottomland forests;
causes growth loss and crown decline.
the larva (figure 16) is tawny
and pinkish with white specks, 2 inches (50 mm) long, two long curved
"horns" are on the second thoracic segment, and short spines
on all other segments; one or two generations per year.
and white oaks; larvae feed on leaves, July to September, consuming all
but leaf stalk and main veins; partial defoliation common; heavy widespread
adults (figure 17) are greenish-brown
to black weevils, .25 inch (6 mm) long, with short snouts; one generation
host range, including red and white oaks; adults emerge in spring and
feed on leaves by chewing in from the margins toward the midribs and devour
all but the larger veins; during fall they create nuisances by invading
houses in large numbers.
the larva (figure 18) is dirty
white to light green, .5 inch (12 mm) long, pale head, brownish thoracic
legs; adults are yellow with brown markings; one generation per year.
of red oak group; young larvae feed on buds in early spring; older larvae
fold or tie together sections of leaves with webbing and feed inside the
folds until late May; severe outbreaks have occurred in upland oaks, killing
some trees, with decline of others.