Thread subject: Diptera.info :: Pupal exuvium - Symmerus (Ditomyiidae)

Posted by jgruber111 on 19-12-2021 03:38
#1
Found at Mayville Ledge Beech-Maple Woods SNA in east-central Wisconsin in northern USA on 31.VII.2021. Found projecting 3-4mm out of trunk of debarked fallen hardwood tree in mixed hardwood forest. Looked relatively fresh, so presumably the adult had emerged not too long before I found the exuvium. Initially I presumed it was dipteran. Coleoptera was suggested on Bugguide. Confirmation/correction appreciated.

Bigger pics here.
Edited by jgruber111 on 03-08-2023 16:22

Posted by jgruber111 on 19-12-2021 03:39
#2
Another view.

Posted by atylotus on 02-03-2022 14:07
#3
Looks more like Limoniidae to me

Posted by jgruber111 on 09-04-2022 22:29
#4
Thank you much!

Posted by jgruber111 on 03-08-2023 16:28
#5
Just wanted to give an update on this. I got confirmation from Even Dankowicz that this is genus Symmerus in Ditomyiidae. I recently got pics of an adult eclosing from such an exuvium - https://www.flick...078261696/.

There are also similar images out on iNat - https://www.inatu...id=1011029
Edited by jgruber111 on 03-08-2023 16:28