Macrostemum is a genus of netspinning caddisflies in the family Hydropsychidae.

There are at least 90 described species in Macrostemum.

[1][2][3][4] These 98 species belong to the genus Macrostemum: Data sources: i=ITIS,[1] c=Catalogue of Life,[2] g=GBIF,[3] b=Bugguide.net[4]

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