| Dreamy duskywing | |
|---|---|
 | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Lepidoptera |
| Family: | Hesperiidae |
| Genus: | Erynnis |
| Species: | E. icelus |
| Binomial name | |
| Erynnis icelus (Scudder & Burgess, 1870) | |
| Synonyms | |
List
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Erynnis icelus, also known as thedreamy duskywing oraspen dusky wing, is a species ofbutterfly in the familyHesperiidae. It is found in boreal North America.
Thewingspan is 29–38 mm. There is one generation with adults on wing from April to early July. There might be a rare second generation in the southern Appalachian Mountains.[citation needed]
The larvae are pale green with multiple white dots. Its heart is visible as a green, middorsal stripe.[2]
The larvae feed onSalix,Populus and sometimesBetula species. Adults feed on nectar from flowers of blueberry, wild strawberry, blackberry, Labrador tea, dogbane, New Jersey tea, winter cress, purple vetch and lupine.[citation needed]
