London plane, mountain-ash, walnut, persimmon, mulberry, basswood, poplar, 
sweetgum, and ginkgo. Serious infestations have occurred on young London plane 
trees in newly developed areas on Long Island. The larvae bored in the trunks and 
larger branches, and were associated with a canker condition (644). 
Euzophera ostricolorella Hulst has been recorded from Long Island to Georgia 
and westward to Ohio, Kentucky, Tennessee, and Louisiana. Its preferred host 
appears to be yellow-poplar, but it also attacks magnolia. Heaviest infestations on 
yellow-poplar are found at the base of trees over 25 cm in diameter (537). Attacks 
above a height of 60 cm on the trunk are rare. The larvae feed in the inner bark, 
excavating tunnels which extend both above and below the ground line. Winter is 
spent in the pupal stage in the tunnel. There appears to be one generation per year in 
the North and two per year in the South. Trees of all sizes may be killed by heavy 
infestations. 
Euzophera magnolialis Capps has been observed damaging or killing magnolia 
seedlings in Florida nurseries. The adult has a wingspread of about 25 mm and the 
forewing is purplish brown with black terminal dots. Full-grown larvae are white 
and flattened, they taper toward the rear, and are about 28 mm long. Attacks occur 
at the base, the larvae tunneling in the lower centimeters of the trunk and in the 
larger roots entering the crown. Heavily infested trees may be girdled and killed 
(196). 
Canarsia ulmiarrosorella (Clemens) occurs in southern Canada and throughout 
the Eastern United States. The larvae feed on the leaves of elm that they web 
together with silk. The adult has a wingspread of 15 to 20 mm. The forewings are 
gray-dusted white and crossed by dark gray or blackish wavy lines. Mature larvae 
are green, sparsely hairy, and about 18 mm long. Winter is spent in the pupal stage, 
and there are two generations per year. This species is sometimes abundant enough 
to attract attention, but is seldom injurious. 
Moodna ostrinella Clemens is rather widely distributed in southeastern Canada 
and the Eastern United States. In Canada, the larvae have been found in second- 
year pine cones damaged by other insects. They have also been found in damaged 
pine cones in Arkansas; in sumac heads in New York, Pennsylvania, and Texas; and 
in fusiform rust cankers and in dead and diseased cones on pines in Florida. Full- 
grown larvae vary from yellow with a greenish tinge to purplish brown with bright 
orange-brown heads, and are about 8 to 10 mm long. 
Actrix nyssaecolella (Dyar) is a leaffolder of tupelo from western Pennsylvania to 
New Jersey and Massachusetts and south to North Carolina. The adult is powdery 
gray and has a wingspread of 18 mm. Full-grown larvae are black with yellow 
heads. Winter is spent in the pupal stage, and larvae are present from May to 
August. 
Laetilia coccidivora (Comstock) larvae feed on various scale insects. According 
to some reports, it has aided materially in the control of outbreaks of the pine 
tortoise scale. It has been recorded from Pennsylvania and Ohio to Florida and 
Texas. 
Family Geometridae 
Geometrid Moths 
This is one of the largest families in the order Lepidoptera, and approximately 
1,200 species occur in the United States and Canada alone. The larvae are easily 
distinguished by their peculiar method of locomotion, which consists of bringing 
the rear end up to the thoracic legs, forming a loop of the body, and then extending 
the whole body forward. This characteristic, which results from the absence of 
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