Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Evergreen Bagworm Moth
Thyridopteryx ephemeraeformis (Haworth, 1803)

Family: Psychidae
Subfamily: Oiketicinae
Identification: Body in male entirely black. Wings also entirely black but usually translucent from loss of scales after emergence from larval case. Abdomen long, tapering. Female entirely wingless and does not leave larval case.
Wing Span: male 1.7-3.6 cm.
Life History: Larvae can be a pest to ornamentals, particularly red cedar. Larva attaches its case with silk to twig of food plant.
Flight: September-October.
Caterpillar Hosts: Trees, shrubs, and herbaceous plants.
Adult Food:
Range: Massachusetts to southern Florida, west to Nebraska and Texas.
Management Needs:
Comments: NULL
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