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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Butterflies and Skippers (Papilionoidea) » Blues, Coppers, Hairstreaks, Harvesters (Lycaenidae) » Hairstreaks (Theclinae) » Eumaeini » Satyrium » Western Sooty Hairstreak - Hodges#4277 (Satyrium fuliginosum)
Photo#719834
A Boisduval's Blue (Plebejus icarioides) ? - Satyrium fuliginosum - female
Copyright © 2012 David F. Hayes

A Boisduval's Blue (Plebejus icarioides) ? - Satyrium fuliginosum - Female
Gnarl Ridge near Johnston Ridge Observatory, Skamania County, Washington, USA
September 4, 2012
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Contributed by David F. Hayes on 2 November, 2012 - 10:38pm
Last updated 3 November, 2012 - 8:03pm

based on location, it is Satyrium fuliginosum
Distinction of the two species as different is pretty iffy. They need to be studied where they meet. Probably they intergrade, but if they occur together and don't, that would favor two species instead of one.

Moved from ID Request.
… David J. Ferguson, 3 November, 2012 - 8:01pm login or register to post comments

ID
An interesting find. This is either Satyrium semiluna or Satyrium fuliginosa, I'm not sure how to distinguish on underside.
… Mike Hofmann, 3 November, 2012 - 6:45pm login or register to post comments

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