Scientific name Lithacodes fasciola Rank Species | Genus Lithacodes Order Butterflies and moths | |
![]() | ||
Similar Prolimacodes badia, Butterflies and moths, Apoda biguttata, Natada nasoni, Spiny oak slug |
Yellow shouldered slug lithacodes fasciola
Lithacodes fasciola, the yellow-shouldered slug or ochre-winged hag moth, is a moth of the family Limacodidae.
Contents
Life cycle

There is one generation a year in the north, but two or more in southern United States, so that mature caterpillars may be found from May to November (Wagner, 2005).
Larva

The larva is flattened and ovoid in outline, with a short, squared off "tail". Bright yellow green with yellow and green stripes along its length. Small craters dot the topside. Maximum length 15 mm. Like all limacodids, the legs are shortened and the prolegs are reduced to suction cups. Wagner (2005) notes that a high proportion of larvae have parasitoids. Their presence can be determined before emergence by a black spot formed by the breathing siphon of the fly.
Pupa
Pupates in a cup-shaped cocoon with a circular escape hatch.
Adult

The small (1 cm) moth is "hairy" and brown, with a white stripe bordered in black across the forewings, black spots and a black crescent. The underwing is a paler grey brown.
Food plants

Eats a variety of deciduous trees and shrubs, not limited to: apple, beech, birch, blueberry, cherry, chestnut, hickory, honey locust, hornbeam, linden, maple, oak and willow (Wagner, 2005).