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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: <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,Spring,Synchysa tricincta,United States Click/tap to enlarge

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.

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

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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
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By Christine Young

Attribution Non-Commercial
Uploaded Jun 3, 2025. Captured May 30, 2025 10:15 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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