and longleaf pines; and from cecidomyid galls on loblolly pine. 
The adult has bright red eyes; the forewings are cinnamon- 
brown and traversed by gray bands; and the wingspread is 8 to 
10 mm. Mature larvae are slender and from 4 to 6 mm. long. 
Winter is spent in the larval stage in a tunnel in a bud or cone. 
Pupation occurs in the spring, and adults appear by May. 
FAMILY OEKCOPHORIDAE 
This family contains a large number of moderately small 
moths, only a few are ever very injurious to trees in eastern 
United States. The larvae of most species either roll, tie, or web 
together the leaves on which they feed. Gates-Clarke (282) re- 
vised the family several years ago. 
Machimia tentoriferella Clem. occurs rather commonly in the 
Northeastern States and southeastern Canada. Its hosts are 
various hardwoods such as birch, ash, maple, oak, honey locust, 
mountain ash, hickory, elm, and wild cherry. The adult is light- 
ochreous and has a wingspread of 18 to 20 mm. The forewing is 
dusted with black and marked with two black discal dots, a spot 
of black in the fold, a broken postmedial line parallel to the outer 
margin, and a series of black terminal dots. The larva is green 
and has a large head and tapering body. It lives and feeds inside 
a folded leaf. 
Psilocorsis faginella (Chmb.) occurs in eastern Canada and the 
Northeastern States. The larva feeds principally as a leaf tier on 
American beech. Other hosts include the birches, maple, and red 
oak. Embree discussed its biology in Nova Scotia (226). 
Full-grown larvae have reddish-brown heads, pale green bodies, 
and are about 12 mm. long. Eggs are laid singly on the undersides 
of leaves. During the first three instars, the larvae feed together 
and skeletonize the leaves near the veins. Older larva usually feed 
singly from within the silken tubes they spin. Full-grown larvae 
drop to the ground and crawl under fallen leaves, where they 
pupate and overwinter. Psilocorsis reflexella Clem., P. obsoletella 
(Zell.), and P. quercicella Clem. occur on oaks in the Eastern 
States. P. fletcherella Gibson has been observed feeding on tremb- 
ling aspen in eastern Canada. It probably occurs in the North- 
eastern States also. 
Other tree-infesting species of oecophorids in eastern United 
States are as follows: Agonopterix pteleae Barnes & Busck—on 
the common hop tree; A. robiniella (Pack.)—on black locust; A. 
argillaceae (Wlsm.)—on willow; A. nigrinotella (Busck)—on 
prickly ash; Bibarrambla allenella (Wls.)—on white birch and 
oaks; and Depressaria betulella (Bsk.)—on white birch and 
hophornbeam. 
FAMILY BLASTOBASIDAE 
Blastobasid moths are small with long antennae. Long scales on 
the head often cover the face and base of the antennae. The scape 
of the antenna is broad and armed with a fringe of bristles, and 
the hindwings are narrower than the forewings. The larvae feed 
either in the cones, nuts, and seeds of various trees; as scavengers 
395 
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