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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) » Blues (Polyommatinae) » Plebejus » lupini/acmon in CA and OR (Plebejus lupini/acmon in CA and OR)
Photo#219626
Plebejus acmon ? - Plebejus
Copyright © 2008 Gary McDonald

Plebejus acmon ? - Plebejus
Aromas, San Benito County, California, USA
August 29, 2008
Size: ~2cm wingspan.
Seen in our garden, on Eriogonum giganteum. I'm guessing Plebejus acmon but Plebejus lupini is very similar, although Shapiro & Manolis, 2007, Field guide to butterflies of the San Francisco Bay and Sacramento Valley regions, say it may not occur in this area. Looks similar to . (live oak/chaparral habitat).
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Contributed by Gary McDonald on 29 August, 2008 - 10:17pm
Last updated 4 July, 2012 - 9:51am

Moved
Moved from Plebejus.
… john and jane balaban, 4 July, 2012 - 9:52am login or register to post comments

for whatever it's worth...
I'd be inclined to guess P. lupinus b/c the orange bands are more orange-y, whereas P. acmon is supposed to be pinkish orange). Additionally, the orange on acmon should be capped by metallic blue, which I see on the sample photo's hindwing, but not on the one you have. I'm basing my guess on info in Brock & Kaufman, p.133
… Nina, 30 August, 2008 - 8:07am login or register to post comments

 
can't tell them apart?
I was out in Kern County in June and the locals said that it wasn't possible to tell them apart in the field because of variations. So we just called them acmon/lupine.
… M Whalen, 30 August, 2008 - 5:48pm login or register to post comments

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