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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Sawflies, Horntails, and Wood Wasps » Common Sawflies (Tenthredinidae) » Nematinae » Croesus » Dusky Birch Sawfly (Croesus latitarsus)
Photo#75820
Hungry 'pillars - Croesus latitarsus
Copyright © 2006 bettay

Hungry 'pillars - Croesus latitarsus
Cincinnati area, Kenton County, Kentucky, USA
September 7, 2006
Size: 1-1.5"
Caterpillars which are feeding on my Paper Birch tree (Betula papyrifera). No tents visible, but some curled leaves with webbing inside.
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Contributed by bettay on 7 September, 2006 - 11:59pm
Last updated 22 December, 2006 - 8:49am

Moved
Moved from Sawflies.
… john and jane balaban, 22 December, 2006 - 8:49am login or register to post comments

Thanks!
Thanks for your help! I am glad to find out they will not damage my tree, are not the juvenille of a rare butterfly species (now I know to look around the garden for those), and as adults the sawfly will not sting. I really appreciate it, as do the tree and sawflies.
-Betty
… bettay, 9 September, 2006 - 10:14am login or register to post comments

I see you updated the food plant info
- looks like dusky birch sawfly is a good bet, then. They feed on all kinds of birch.
… Hannah Nendick-Mason, 8 September, 2006 - 9:13pm login or register to post comments

Sawfly larvae
we don't have many species identified on this site but there's a suborder info page here. Identifying the tree might help narrow down the ID. Looks kind of like a river birch leaf, maybe? In which case they could be the larvae of dusky birch sawfly.
… Hannah Nendick-Mason, 8 September, 2006 - 12:53pm login or register to post comments

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