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Sawfly - Nematus tibialis

Sawfly - Nematus tibialis
Atco, Camden County, New Jersey, USA
July 26, 2009
Found on Black Locust leaf.
First image from New Jersey.

Tenthredinidae, Nematinae
Nematus tibialis is correct. However, it is not a willow sawfly. The larvae of this species feed on black locust.

Thanks for the correction! I used "Willow Sawfly" for the group name (Nematus) though... I'll be more careful to put title from now. I changed title:)

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