Pachynematus is a genus of common sawflies in the family Tenthredinidae.

There are at least fifty described species in Pachynematus.

[1][2][3][4] These 54 species belong to the genus Pachynematus: Data sources: i = ITIS,[1] c = Catalogue of Life,[2] g = GBIF,[3] b = Bugguide.net[4]

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