Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

  Sighting 1403893

Columbine Duskywing
Erynnis lucilius

Observation date: June 16, 2025
Submitted by: John Terpstra
Specimen type: Photograph
Observation notes: observed on Tufted Vetch along gravel road in mixed forest near beaver pond
Status: Resident
Verified by: jmgesell
Verified date: June 22, 2025
Coordinator notes: I'm placing this ID confirmation with reservations, since it is near impossible to single in on a specific species without a ventral view. Here's my reasoning: 1) Juvenal's should have a prominent discal cell spot on the FW (in rare cases this can be absent). 2) Lack of discal cell spot with similar FW appearance leaves Columbine and Wild Indigo, which are extremely similar in appearance. Wild Indigos are working their way further north every year, but I don't think they've made it as far north as Sudbury as of yet. 3) So, by a process of (most likely) elimination, this leaves Columbine. Hope this helps! -Jeff Gesell
Checklist region(s): Canada, Ontario