Orange Spur Fly Teuchocnemis bacuntius (Walker, 1849)    
Kingdom Animalia   >   Phylum Arthropoda   >   Class Insecta   >   Order Diptera   >   Family Syrphidae   >   Genus Teuchocnemis   

Status:

Uncommon. Flies mostly in April and May in Maryland. Has been found near seeps along sandy streams, patrolling rotting stumps and logs, and visiting Crataegus (hawthorn) flowers (Skevington, 2019). Larvae are unknown.

Description:

Large and beautiful fly, measuring 13.5-18.1 mm. Easily identified by the "large apical orange markings on the tergites, and the orange proleg" (Skevington, 2019). Thought to mimic paper wasps (genus Polistes) (BugGuide).

There are 22 records in the project database.

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A male Orange Spur Fly in Prince George's Co., Maryland (5/15/2021). (c) Sergei Drovetski, all rights reserved. Photo by Sergei Drovetski. (MBP list)

A female Orange Spur Fly in Prince George's Co., Maryland (4/24/2021). (c) Sergei Drovetski, all rights reserved. Photo by Sergei Drovetski. (MBP list)

Orange Spur Fly in Worcester Co., Maryland (4/21/2013). Photo by Scott Housten. (MBP list)

Orange Spur Fly in Prince George's Co., Maryland (4/24/2021). (c) Sergei Drovetski, all rights reserved. Photo by Sergei Drovetski. (MBP list)

Orange Spur Fly in Prince George's Co., Maryland (4/24/2021). (c) Sergei Drovetski, all rights reserved. Photo by Sergei Drovetski. (MBP list)

An Orange Spur Fly in Wicomico Co., Maryland (4/11/2010). Verified by Martin Hauser/BugGuide. Photo by Jim Brighton. (MBP list)

Orange Spur Fly in Baltimore Co., Maryland (5/29/2020). (c) Benjamin Burgunder, some rights reserved (CC BY). Photo by Benjamin Burgunder via iNaturalist. (MBP list)

Orange Spur Fly in Prince George's Co., Maryland (5/15/2021). (c) Sergei Drovetski, all rights reserved. Photo by Sergei Drovetski. (MBP list)

Orange Spur Fly in Anne Arundel Co., Maryland (4/11/2020). (c) Timothy Reichard, all rights reserved. Photo by Timothy Reichard. (MBP list)

Orange Spur Fly in Anne Arundel Co., Maryland (4/11/2020). (c) Timothy Reichard, all rights reserved. Photo by Timothy Reichard. (MBP list)

Orange Spur Fly in Anne Arundel Co., Maryland (4/23/2019). (c) staceych, some rights reserved (CC BY-NC). Photo by staceych via iNaturalist. (MBP list)

Orange Spur Fly in Worcester Co., Maryland (4/17/2021). (c) Jim Brighton, some rights reserved (CC BY-NC). Photo by Jim Brighton. (MBP list)

Orange Spur Fly in Harford Co., Maryland (4/20/2023). (c) richard crook, some rights reserved (CC BY-NC). Photo by rwcrook via iNaturalist. (MBP list)

Orange Spur Fly in Prince George's Co., Maryland (4/24/2021). (c) Sergei Drovetski, all rights reserved. Photo by Sergei Drovetski. (MBP list)

Orange Spur Fly in Anne Arundel Co., Maryland (4/17/2021). (c) Timothy Reichard, all rights reserved. Photo by Timothy Reichard. (MBP list)

Orange Spur Fly in Baltimore Co., Maryland (4/29/2019). (c) laurabankey, some rights reserved (CC BY-NC). Photo by laurabankey via iNaturalist. (MBP list)


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