Synonyms and other taxonomic changes
(Walker, ) (1)
Walker, 1862 (1)
Zeller, 1872 (1)
Hulst, 1896 (1)
Strecker, 1899 (1)
Phylogenetic sequence # 208100
The only species in this genus in North America. (1)
Adult: wings uniformly yellowish-green to dusky green; PM line slightly wavy, indistinct (sometimes absent), often the only visible marking.
The area between the antennae base is green compared to white in Hethemia pistasciaria.
Larva: green with brown dorsal stripe; body slender and without noticeable bumps or protrusions; head and first thoracic segment with pair of pointed horns.
Alaska to Newfoundland, south to North Carolina, west to California(4)
Type locality: USA: Washington, Seattle. (1)
Moth Photographers Group
- large map with some distribution data.
Dry open mixedwood and pine forest, peat bogs, grasslands. (5)
Adults fly during the day in April and August. (6)
Larvae feed mainly on leaves of willow and Sweet Gale (Myrica gale), but also on alder, birch, Buffaloberry (Sherpherdia canadensis), gooseberry, New Jersey Tea (Ceanothus americanus), pine, and members of the rose family (Rosaceae)
associated with Labrador Tea (Ledum groenlandicum
) and Bearberry (Arctostaphylos uva-ursi
) in Alberta. (5)
Day flying moth that is usually not attracted to lights.
of both species)
Hethemia pistasciaria has a white area between the antennae compared to green in Mesothea incertata
Compare to other related species on the pinned plates of Moth Photographers Group
Ferguson, D.C., 1985. The Moths of America North of Mexico, Fascicle 18.1: p. 127; pl. 4.84-91.(1)
Powell, J.A. & P.A. Opler 2009. Moths of Western North America, pl. 31.25m; p. 221. (3)