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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Geometrid and Swallowtail Moths (Geometroidea) » Geometrid Moths (Geometridae) » Ennominae » Lithinini » Petrophora » Northern Petrophora - Hodges#6804 (Petrophora subaequaria)
Photo#449761
Unknown Moth - Petrophora subaequaria
Copyright © 2010 Mike Hofmann

Unknown Moth - Petrophora subaequaria
Indian Creek trail in Rampart Range, Douglas County, Colorado, USA
June 5, 2010
Size: 28 mm wingspan
Day-flying, very common in a certain meadow and occasional along much of the trail, elevation 7,700'.
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Contributed by Mike Hofmann on 31 August, 2010 - 10:15pm
Last updated 2 January, 2018 - 9:38am

Moved
Moved from Geometrid Moths.

It seems to be far out of range, but Paul is probably correct. The zig-zag shape of the ST line on the fore-wings is unique. The wing shape and the veins seem to match up, as well as the doubled PM line and the discal spots. (...and the solid terminal line is thin)
Here is the image that he referred to:
… Bob Biagi, 2 January, 2018 - 9:38am login or register to post comments

Moved
Moved from Moths.
… Charley Eiseman, 9 December, 2010 - 8:54am login or register to post comments

Looks like...
This looks like a Northern Petrophora (P. subaequaria), but I didn't think they were found as far west as Colorado. Still, they're a northern species here in the east so if they did occur in Colorado the high elevation would make sense. Here's a pic to compare to: http://bugguide.net/node/view/286660

I'd wait for a Geo expert to confirm... Interesting find :)
… Paul Dennehy, 7 December, 2010 - 8:43pm login or register to post comments

Moved
Moved from ID Request.
… john and jane balaban, 24 September, 2010 - 9:14pm login or register to post comments

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