Other Common Names
Milkweed Tiger Moth, Milkweed Tussock Caterpillar (larva), Harlequin Caterpillar (larva)
Synonyms and other taxonomic changes
Euchaetes egle (Drury, 1773)
* phylogenetic sequence #930412
Explanation of Names
Author of species is Drury
1773, as Phalaena egle
, presumably. The origin of the species name is not clear. Egle
is a character in a Lithuanian folk tale, but it is also a surname. (Based on Internet searches.)
Wings usually unmarked gray, abdomen yellow with black spots.
eastern half of US plus Quebec and Ontario
Fields, edges, etc. with host plant
Adult: May-September (two flights in much of range). Caterpillars found starting in June (2)
Larvae feed on milkweed, Asclepias
species. Adults sometimes found on hostplant during day (1)
. Females lay eggs in "rafts" and caterpillars are gregarious during instars 1-3, solitary in later instars, when marked with bright tufts. May defoliate patches of milkweed (2) (3)
Covell, p. 74, plate 12 #17 (1)
Wagner, p. 474--photos of larva and adult (2)
Lafontaine J. D., and B. C. Schmidt 2010. Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America North of Mexico. (4)
Moth Photographers Group
- range map, photos of living and pinned adults.
BOLD - Barcode of Life Data Systems
- species account with collection map and photos of pinned adults.