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Elm Leafminer - Fenusa pusilla Paper-like, semi-transparent blotch mines of various sizes confined between lateral leaf veins. Lots of frass and one larva per mine, although many were already vacant.<br /> <br /> Host: Ulmus<br /> <br /> Video: <section class="video"><iframe width="448" height="282" src="https://www.youtube-nocookie.com/embed/W7nabS57Kug?hd=1&autoplay=0&rel=0" frameborder="0" allowfullscreen></iframe></section><br /> <br /> *I plan to collect some leaves to see if I can rear the adults. Fenusa pusilla,Geotagged,Spring,United States,elm,fenusa,leaf mine,leafmine,ulmus Click/tap to enlarge Species introCountry intro

Elm Leafminer - Fenusa pusilla

Paper-like, semi-transparent blotch mines of various sizes confined between lateral leaf veins. Lots of frass and one larva per mine, although many were already vacant.

Host: Ulmus

Video:



*I plan to collect some leaves to see if I can rear the adults.

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The Elm Leafminer

Fenusa pusilla is a sawfly that creates leaf mines in Ulmus and Betula.

Info 1 0
Similar species: Wasps, Bees, Sawflies And Ants
Species identified by Christine Young
View Christine Young's profile

By Christine Young

Attribution Non-Commercial
Uploaded May 9, 2025. Captured May 8, 2025 14:06 in 5 East St, New Milford, CT 06776, USA.
country flag of United States of America Explore United States of America 39,926 9,640 8
  • Canon EOS 90D
  • f/8.0
  • 1/395s
  • ISO400
  • 100mm