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Dung Fly Leaf Mine - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: <section class="video"><iframe width="448" height="282" src="https://www.youtube-nocookie.com/embed/fYxVS8x9NJg?hd=1&autoplay=0&rel=0" frameborder="0" allowfullscreen></iframe></section><br /> <br /> <figure class="photo"><a href="https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html" title="Dung Fly Leaf Mine - Synchysa tricincta"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3232/169366_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1759968010&Signature=lo0zdrKAPPmkl4iOcg%2F4HDfxjL4%3D" width="126" height="152" alt="Dung Fly Leaf Mine - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: https://youtu.be/fYxVS8x9NJg<br /> <br /> https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html Geotagged,Scathophagidae,Spring,Synchysa,Synchysa tricincta,United States,leafminer" /></a></figure><br /> <figure class="photo"><a href="https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html" title="Dung Fly Leaf Mine (Eggs) - Synchysa tricincta"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3232/169364_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1759968010&Signature=laezSsZviF62pIKF5Z0ZC4VjUhI%3D" width="200" height="154" alt="Dung Fly Leaf Mine (Eggs) - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: https://youtu.be/fYxVS8x9NJg<br /> <br /> https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html Geotagged,Spring,Synchysa tricincta,United States" /></a></figure><br /> <figure class="photo"><a href="https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html" title="Dung Fly Leaf Mine (Pupa) - Synchysa tricincta"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3232/169365_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1759968010&Signature=RUb3t4DqaPhxrhHi0a62tkyUj6g%3D" width="132" height="152" alt="Dung Fly Leaf Mine (Pupa) - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: https://youtu.be/fYxVS8x9NJg<br /> <br /> https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html Geotagged,Synchysa tricincta,United States" /></a></figure> Geotagged,Scathophagidae,Spring,Synchysa,Synchysa tricincta,United States,leafminer Click/tap to enlarge Species introCountry intro

Dung Fly Leaf Mine - Synchysa tricincta

Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.

I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring.

Host: Maianthemum racemosum

Video of larva inside the mine:



Dung Fly Leaf Mine - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: https://youtu.be/fYxVS8x9NJg<br /> <br /> https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html Geotagged,Scathophagidae,Spring,Synchysa,Synchysa tricincta,United States,leafminer

Dung Fly Leaf Mine (Eggs) - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: https://youtu.be/fYxVS8x9NJg<br /> <br /> https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html Geotagged,Spring,Synchysa tricincta,United States

Dung Fly Leaf Mine (Pupa) - Synchysa tricincta Blotch-like mine with 2 white eggs with wing-like projections on the underside of the mine. The mine had reddish brown edges. There was only one larva in the mine, but there was a hole visible on the underside, so maybe the 2nd larva had already exited.<br /> <br /> I collected the leaf for rearing. The larva exited the mine and pupated overnight on 6/1/25 (see photo). I dropped it in a container with a few cm of barely moist soil to see if I can rear it to adulthood by overwintering it in the refrigerator. Hopefully an adult will emerge next spring. <br /> <br /> Host: Maianthemum racemosum<br /> <br /> Video of larva inside the mine: https://youtu.be/fYxVS8x9NJg<br /> <br /> https://www.jungledragon.com/image/169366/dung_fly_leaf_mine_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169364/dung_fly_leaf_mine_eggs_-_synchysa_tricincta.html<br /> https://www.jungledragon.com/image/169365/dung_fly_leaf_mine_pupa_-_synchysa_tricincta.html Geotagged,Synchysa tricincta,United States

    comments (2)

  1. View Ernst's profile
    Ernst
    Lion
    View Lion class
    Great work,most interesting. Posted 3 months ago
    1. View Christine Young's profile
      Christine Young
      Lion
      View Lion class
      Thanks! Looking for galls and leafmines has given me something to do outside during all the cold and rainy weather we've been having. Posted 3 months ago

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The Synchysa tricincta

Synchysa tricincta is a leafmining dung fly in the family Scathophagidae.

Info 3 0
Similar species: True Flies
Species identified by Christine Young
View Christine Young's profile

By Christine Young

Attribution Non-Commercial
Uploaded Jun 3, 2025. Captured May 30, 2025 10:16 in 3280 Franklin Ave, Millbrook, NY 12545, USA.
country flag of United States of America Explore United States of America 39,925 9,640 8
  • Canon EOS 90D
  • f/8.0
  • 1/64s
  • ISO400
  • 100mm

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