Paul Cools   cc-by-nc-4.0

Thecla betulae (Brown Hairstreak) is a species of butterflies in the family gossamer-winged butterflies. They visit flowers of Tuberous Thistle, devilsbit, woolly thistle, and Spear Thistle. They are diurnal.

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EOL has data for 12 attributes, including:

Known occurrences, collected specimens and observations of Brown Hairstreak. View this species on GBIF