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Photo#1190742
Crambidae,  dorsal - Anania mysippusalis

Crambidae, dorsal - Anania mysippusalis
Red Oak Prairie, Allamakee County, Iowa, USA
April 2, 2015
Size: 12 mm
March 31, 2015: peeling bark from dead trees with K Johnson. In removing larva from attament to the tree, accidentally ripped open the cocoon. Put the larva into saw dust, more like saw bits
May 8, 2015: found dead moth
Thank you Steve. I sent the image with your suggestion to J Durbin again and he says: "I will go with Steve. After taking another good look, the forewing on S. externalis is more curved. I missed that before." K Johnson concurs: "Anania mysippusalis looks good to me."

Images of this individual: tag all
Crambidae,  dorsal - Anania mysippusalis Crambidae, lateral-ventral - Anania mysippusalis Crambidae, lateral-ventral - Anania mysippusalis Crambidae, head - Anania mysippusalis

Thanks for checking
Now I have a problem with two cat images here and here. I think they are messed.

 
Two more
here and here. And those are your images. Are they all the same species at different stages? Sorry, I'm clueless with larvae.

 
Yes, these two are mine
and I suspect they are the same as this more yellow fat one. Since I disturbed it in it's cocoon, this one is probably pre-pupa.

I don't know if it is appropriate to give an example of another species but I'm familiar with this one, different instars (but also different individuals) from early instar to pre-pupa. (If not appropriate I'll delete.)

 
Thank you!
Thanks for the explanation.

Moved
Moved from Pyraustinae.

Moved
Moved from Pyraustini.

Pyraustini has been elevated to subfamily.

Anania mysippusalis?
Forewing fringe is dark and hindwing fringe is pale. Per info here there is a key to larvae here that I haven't read because there is a fee and I'm not sure it will help.

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