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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Stem Sawflies (Cephidae) » Cephini » Cephus
Photo#1076698
Stem Sawfly - Cephus
Copyright © 2015 Yurika Alexander

Stem Sawfly - Cephus
Atco, Camden County, New Jersey, USA
June 1, 2015
Size: 12mm?
Found on dead grass stem in grassy area. And flew to blade of fresh grass.
Cephus?

Images of this individual: tag all
Stem Sawfly - Cephus Stem Sawfly - Cephus
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Contributed by Yurika Alexander on 1 June, 2015 - 5:05pm
Last updated 19 March, 2023 - 12:53am

Moved
Moved from Wheat Stem Sawfly.

Actually, may be best to keep eastern specimens only at genus at this point since Smith (in Krombein, 1979)(1) only includes C. pygmaeus this far east.
… Jonathan Hoskins, 19 March, 2023 - 12:53am login or register to post comments

Moved
Moved from Cephus.

Any yellow in the pterostigma and extensively yellow femora should exclude C. pygmaeus (esp. photo #2) using Middlekauff's key.
… Jonathan Hoskins, 18 March, 2023 - 11:54pm login or register to post comments

Moved
Moved from Cephini.
… Jonathan Hoskins, 18 March, 2023 - 10:55pm login or register to post comments

Moved
Moved from Stem Sawflies.
… v belov, 6 June, 2015 - 2:51pm login or register to post comments

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