Moth: Pero sp. - Pero morrisonaria - BugGuide.Net

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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 » Azelinini » Pero » Morrison's Pero - Hodges#6755 (Pero morrisonaria)

Photo#1076553

Copyright © 2015 Nigel Grindley

Moth: Pero sp. - Pero morrisonaria

Block Island, Washington County, Rhode Island, USA
May 22, 2015

Clearly a Pero sp. moth. I am strongly inclined towards Pero morrisonia because of the deeply serated hindwing outer margin, but it might possibly be P. ancetaria. Help would be much appreciated.

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Contributed by Nigel Grindley on 1 June, 2015 - 11:23am
Last updated 18 March, 2020 - 7:28pm

Moved

Moved from Pero.

I would agree that based on appearances, this would most likely be morrisonia.

However, I have to add the small caveat that in just the last 1-2 years, identifying Pero specimens to species from photos has become quite murky, and without a physical examination or DNA, many, many IDs almost need an obligatory asterisk.

That said, based on the appearance here and general criteria for visual distinction, it fits with morrisonia, so that's why I went ahead and moved it. If anyone feels it would be better left at genus level, feel free to move it back - no hard feelings if that's the case. :-)

… Jason D. Roberts, 14 February, 2016 - 11:18pm

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Moved

Moved from ID Request.

… A. Hendrickson, 9 June, 2015 - 9:14pm

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.

Nigel, as you know I do not pretend to be an expert, but I did notice the black spot on the forewing in the PM area. This is a quote from the INFO page of P. honestaria, "No black spot centered near the distal edge of the FW." That said, I see one on some of the examples on MPG - most notably the Carol Wolf photo there.

I am inclined to think you might be right. Most of the P. morrisonia examples have it. A hind-wing might help.

… A. Hendrickson, 3 June, 2015 - 12:57pm

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I have the same problem

Last night I tried to ID this pero from last year but I was stumped too.

… Aaron Hunt, 1 June, 2015 - 3:33pm

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Pero sp.

The Peros seem really hard - I have about 6-8 others taken over the past 2 weeks! I'm doing better with Zales!

and

… Nigel Grindley, 1 June, 2015 - 4:37pm

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I have my work cut out for me...

… Aaron Hunt, 6 June, 2015 - 8:48pm

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