Sargus bipunctatus

(Scopoli, 1763)

twin-spot centurion, Twin-Spot Centurion Fly

Sargus bipunctatus, commonly known as the twin-spot centurion, is a European in the . range from 10–14 mm in body length and display in coloration. The is associated with decaying matter, where females oviposit and develop. It has been observed in both open and wooded from July through November.

Sargus bipunctatus by (c) Don Loarie, some rights reserved (CC BY), uploaded by Don Loarie. Used under a CC-BY license.Twin-spot Centurion - Sargus bipunctatus (49373987841) by gailhampshire from Cradley, Malvern, U.K. Used under a CC BY 2.0 license.Sargus bipunctatus-pjt2 by Pjt56 --- If you use the picture outside Wikipedia I would appreciate a short e-mail to pjt56@gmx.net or a message on my discussion page. Used under a CC BY-SA 4.0 license.

Identification

Distinguished from the similar Sargus cuprarius by a narrower . Males are slender with a metallic green and with violet metallic tinge; females are broader with the abdomen base extensively reddish and a blackish tip bearing reflections. are slightly . Legs are red with brown at the . Body length 10–14 mm.

Images

Habitat

Found in open and wooded . frequently sunbathe on foliage in sheltered spots.

Distribution

Europe, including Belgium, Denmark, and southern Western Europe; also recorded in the Trans-Caucasus Central belt.

Seasonality

period from July to November.

Life Cycle

Females lay on fresh , manure, or in nearby soil. develop in cow dung, compost, rotting vegetation, and decaying . Larvae have also been found in of the .

Behavior

sunbathe on foliage in sheltered locations.

Ecological Role

contribute to decomposition of matter including , compost, and rotting vegetation.

Similar Taxa

  • Sargus cuprariusSimilar appearance but with broader ; S. bipunctatus has narrower frons and distinct abdominal coloration differences between sexes.

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Sources and further reading