TL: USA, California
32-49 mm
Regional distr. - legend
- Local names
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Language Vernacular name 
EnglishMournful Duskywing
- Primary hostplants
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Family Latin name Vernacular name Fagaceae Quercus Oak
- Synonyms and other combinations
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Latin name Author Thanaos tristis Boisduval, 1852 Thanaos tatius Edwards, 1883 Thanaos albomarginatus Godman, 1899
- Erynnis (Erynnides) tristis is a member of the clade Erynnis juvenalis:
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Species Author Erynnis (Erynnides) horatius (Scudder & Burgess, 1870) Erynnis (Erynnides) juvenalis (Fabricius, 1793) Erynnis (Erynnides) meridianus Bell, 1927 Erynnis (Erynnides) scudderi (Skinner, 1914) Erynnis (Erynnides) telemachus Burns, 1960 Erynnis (Erynnides) tristis (Boisduval, 1852) Erynnis (E.) mercurius (Dyar, 1926)
- Links
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Language Website Authors Butterflies and Moths of North America Butterflies of America A.Warren, K.Davis, M.Stangeland North American Moth Photographers Group
Scanning the QR code below automatically opens the description page for this species. Placing this code on a specimen label, poster, or museum display board provides visitors with quick and easy access to full species details directly on their smartphones.
 | Extinct |
 | Extinct in the wild |
 | Critically endangered |
 | Endangered |
 | Vulnerable |
 | Near Threatened |
 | Least Concern |
 | Lower Risk |
 | Legally protected |
 | CITES |