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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Geometrid and Swallowtail Moths (Geometroidea) » Geometrid Moths (Geometridae) » Larentiinae » Operophterini » Epirrita
Photo#813788
Geometrid defoliator - Epirrita
Copyright © 2013 Stacy Studebaker (USFWS)

Geometrid defoliator - Epirrita
Uyak Bay, Harvester Island vicinity, Kodiak National Wildlife Refuge, Kodiak Island, Kodiak County, Alaska, USA
July 9, 2013
More details on this infestation at http://www.akentsoc.org/archives/444.
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Contributed by Matthew Bowser on 29 July, 2013 - 2:01pm
Last updated 23 November, 2015 - 10:51am

Moved
Moved from Geometrid Moths.
… john and jane balaban, 23 November, 2015 - 10:51am login or register to post comments

Moved
Moved from Butterflies and Moths.
… john and jane balaban, 24 August, 2013 - 2:53pm login or register to post comments

Moved
Moved from ID Request.
… john and jane balaban, 18 August, 2013 - 2:35pm login or register to post comments

Have you tried raising these caterpillars
and seeing what they turn into?
… stan gilliam, 29 July, 2013 - 2:29pm login or register to post comments

 
Have not reared these
This defoliation event is distant from where I am. I am posting the image on behalf of someone else who photographed them. Also, these caterpillars have would have pupated by now.

This is likely Operophtera bruceata, which has caused similar defoliation events on Kodiak Island in the past. Epirrita undulata would be another good guess as this species has been involved in recent defoliation events in southcentral Alaska. I am no Lepidoptera expert, however, which is why I posted the image here.
… Matthew Bowser, 29 July, 2013 - 2:59pm login or register to post comments

 
Maybe one of the experts can help you.
This link

http://bugguide.net/node/view/9744

shows some Operophtera caterpillars.
… stan gilliam, 29 July, 2013 - 3:48pm login or register to post comments

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