Erynnis icelus
species of insect
Erynnis icelus, also known as the dreamy duskywing or aspen dusky wing, is a species of butterfly in the family Hesperiidae. It is found in boreal North America.
The wingspan 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.
The larvae are pale green with multiple white dots. Its heart is visible as a green, middorsal stripe.
The larvae feed on Salix, Populus and sometimes Betula species. Adults feed on nectar from flowers of blueberry, wild strawberry, blackberry, Labrador tea, dogbane, New Jersey tea, winter cress, purple vetch and lupine.
The public source identifies “Erynnis icelus” as species of insect. This brief keeps that definition visible, then builds a research path around Erynnis, icelus and species.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Sep 26, 2024. The linked authority identifier is Q1312761. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Erynnis icelus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.