Insects Feeding
on these Plants:
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Potamogeton zosteriformis (Flat-Stemmed Pondweed) [Potamogetonaceae]
(observations are from Harms & Grodowitz)
Diptera (Flies)
Ephydridae: Hydrellia bergi [larvae bore into stems & petioles, observed in Michigan] HG2009, Hydrellia cruralis [larvae feed on submerged leaves, rarely on floating leaves; found in NE USA, including Michigan] HG2009, Hydrellia itascae [this insect has been found in Minnesota] HG2009, Hydrellia luctuosa [larvae feed on submerged leaves, rarely on floating leaves; found in Michigan] HG2009
Lepidoptera (Butterflies, Skippers, & Moths)
Crambidae: Parapoynx badiusalis (Chestnut-Marked Pondweed Moth) [larvae feed on leaves, found in NE USA & north-central USA] HG2009