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Stamnodes modocata? - Stamnodes modocata

Stamnodes modocata? - Stamnodes modocata
Sage Flat Campground, Big Pine Recreation Area, Inyo County, California, USA
September 2, 2012
Came to lantern light at night. I waited a long time for it to open up its wings so I could shoot its dorsal side, with no luck. But I see now that Stamnodes spp. perch with wings closed like this. My initial guess is Stamnodes modocata just based on resemblance to the picture in MPG, but would appreciate expert input.

Moved from Geometrid Moths.

Stamnodes modocata
Stamnodes modocata looks correct to me. This is a new species for the guide. I have verified two sightings of this species (here and here) also from Inyo County on the BAMONA project.

The only other similar species seem to be Stamnodes animata, which looks paler, and monochrome, without any brownish shades on the underside; and Stamnodes coenonymphata which has a smaller triangle-shaped mark on the underside hindwing, and no black mark on the underside of the forewing. See all three at MPG: Stamnodes modocata, Stamnodes animata, and Stamnodes coenonymphata.

Moved for Expert ID
Moved from ID Request.

Many Geometrids hold their wings folded like butterflies
This is particularly true with Ennominae, which includes Stamnodes. However, I have not been able to match key characteristics of your specimen, most notably: black ST extending from midway along the costa to the anal angle of the HW, the black dashed terminal line in the fringe on both HW & FW, and the heavy PM on HW that jags between each 'M' vein. Wish I had an answer for you, but I'm not sure what this. Hopefully someone familiar with West Coast fauna will know.

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