Tenthredinidae, quite a few, on Interrupted Ferns - Strongylogaster polita

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Common Sawflies (Tenthredinidae) » Selandriinae » Strongylogastrini » Strongylogaster » Strongylogaster polita

Photo#1529053

Copyright © 2018 MJ Hatfield

Tenthredinidae, quite a few, on Interrupted Ferns - Strongylogaster polita

100 Acre Wood, Winneshiek County, Iowa, USA
June 1, 2018

Quite a few feeding on Interrupted Ferns, Osmunda claytoniana.
Dave Smith suggests these might be Strongylogaster tacita (Norton) and to look for the distinctive adults around the ferns. He also said: "Strongylogaster larvae like to bore into some soft substance to pupate. I would put dead wood, cork, corrugated cardboard, hollow twigs, or even straws in with them. Anything they could easily bore into for a pupal cell. Problem is keeping them all summer/winter and hope something comes out next year."

May 4, 2019: oh my goodness, 2 adults (These would be the very first sawflies I've ever overwintered!)

Batch rearing

Images of this individual: tag all

Tenthredinidae, quite a few, on Interrupted Ferns - Strongylogaster polita

Tenthredinidae, herbivory - Strongylogaster polita

Tenthredinidae, preparing for pupation - Strongylogaster polita

Tenthredinidae, dorsal - Strongylogaster polita

Tenthredinidae, lateral - Strongylogaster polita

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Contributed by MJ Hatfield on 1 June, 2018 - 4:06pm
Last updated 16 July, 2021 - 7:50pm

Moved

Moved from Strongylogaster.

I finally sent your specimen to Dave this week and he got to it right away. I reared the same species from the same host, larva collected in PA. This is a new westernmost record, and first reliable host record.

… Charley Eiseman, 16 July, 2021 - 7:50pm

What fun.

Thank you Charley and Dave.
Should BG range include IA?

… MJ Hatfield, 16 July, 2021 - 10:00pm

I just put in the range that has been published so far...

but I guess I can add that in.

… Charley Eiseman, 17 July, 2021 - 9:02am

Thanks!

… MJ Hatfield, 17 July, 2021 - 9:49am

Moved

Moved from "Symphyta" - Sawflies, Horntails, and Wood Wasps.

… MJ Hatfield, 5 May, 2019 - 9:40am

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