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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 » Angeronini » Euchlaena
Photo#1798693
Geometrid from willow - Euchlaena
Copyright © 2020 jim sogaard

Geometrid from willow - Euchlaena
Princeton, Sherburne County, Minnesota, USA
May 15, 2013
Size: ~ 32 mm
I thought the distinctive dorsal markings might make identification easy but I've not made a match. On May 21 many wasp larvae emerged but apparently none successfully pupated. Thanks in advance for any advice.

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Geometrid from willow - Euchlaena Geometrid from willow - Euchlaena
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Contributed by jim sogaard on 11 April, 2020 - 8:48am
Last updated 2 May, 2020 - 10:57pm

Moved
Moved from Butterflies and Moths.
… George Smiley, 2 May, 2020 - 10:57pm login or register to post comments

My Guess
Penultimate instar Euchlaena. I find similarly confusing individuals all the time, then they molt and the ridges and protuberances become more pronounced.
… George Smiley, 2 May, 2020 - 2:03pm login or register to post comments

 
I like your 'guess'
It fits in terms of life cycle and size. Somehow I haven't found the file in my files, so I don't know if I even thought of Euchlaena. Much appreciate your input.
… jim sogaard, 2 May, 2020 - 7:05pm login or register to post comments

 
OK, I found the image
And it actually has a preserved file name 'presumed Euchlaena'! I also found another, tentatively called Euchlaena effecta (ex ova), which looks quite similar. So, I very much like your ID and thanks again for your assistance in cutting through the fog!
… jim sogaard, 3 May, 2020 - 10:55am login or register to post comments

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