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Photo#53316
Mayfly Larva - Maccaffertium modestum

Mayfly Larva - Maccaffertium modestum
Harvard, Worcester County, Massachusetts, USA
May 21, 2006
Size: 11.5mm

Heptageniidae: Maccaffertium modestum
A few M. modestum in the sample you brought me.

Heptageniidae: Stenacron or Maccaffertium
Have to see one of the abdominal gills to be sure.

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