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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » Calyptratae » Muscoidea » Dung Flies (Scathophagidae) » Scathophaginae » Cordilura
Photo#734039
Sedge fly - Cordilura - male
Copyright © 2012 Charley Eiseman

Sedge fly - Cordilura - Male
Canaan, Litchfield County, Connecticut, USA
May 15, 2012
Size: 6 mm
On 4/5/2012 I dug up a sedge, potted it, and put the pot in a plastic bag, hoping to rear some Cosmopterix larvae that were mining in the leaves. On 5/14/12 this fly appeared in the bag--apparently it had been overwintering in the soil and had just emerged.

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Sedge fly - Cordilura - male Sedge fly - Cordilura - male Sedge fly - Cordilura - male Sedge fly - Cordilura - male Sedge fly - Cordilura - male Sedge fly - Cordilura - male
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Contributed by Charley Eiseman on 29 December, 2012 - 8:57pm
Last updated 29 December, 2012 - 10:30pm

Cordilura dimidiata?
Cordilura dimidiata? I suspect the large fifth sternite is distinctive for only a few species.
… John F. Carr, 24 October, 2014 - 8:36pm login or register to post comments

Moved
Moved from Flies.
Thanks! The sedge was a Carex, cf. laxiflora.
… Charley Eiseman, 29 December, 2012 - 10:30pm login or register to post comments

Cordilura…
The scutellum has two bristles on it which helps separate it from the Scathophaga which has four. You can also see a long bristle that extends outward from the palpus which is also a characteristic of this genus. The wing venation appears to match as well. Coincidentally, their larvae feed in the culms of Scirpus and Carex, both of which are sedges.

See reference here.
… Ross Hill, 29 December, 2012 - 10:13pm login or register to post comments

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