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Wasp-mimic Hover Flies - Subfamily Microdontinae

Family Syrphidae

This page contains pictures and information about Hover Flies in subfamily Microdontinae that we found in the Brisbane area, Queensland, Australia.
 
The hover flies in Subfamily Microdontinae have antennae directed anteriorly and usually long. They are stoutly built, closely resembling bees or wasps. 
 
The larvae are oval and convex dorsally, soft and flat ventrally, could be mistaken as mollusks. They are found in ants' nests, where the larvae live as scavengers or predators.

Black Wasp-mimic Fly
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Microdon sp., body length 6mm
Found this Black Wasp-mimic Hover Fly in Karawatha Forest near the Lagoon, Sep 2008. We have more photos of this fly here.
 
 
Yellow-face Wasp-mimic Fly
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Microdon sp., body length 8mm
We found a few of them hovering near the ground. This fly has very good hovering technique. It can stay still at a single spot in air firmly for a long time, then suddenly move to another spot very quickly and stay there. Please check this page for more information.
 
 
Wasp-mimic Fly
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Bardistophus sp., body length 6mm
This Wasp-mimic Hover Fly is distinguished by its extremely long 3rd antenna segment. Check this page for more information.

Reference:
1. Insects of Australia - CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, p763.
2. Insects of Australia and New Zealand - R. J. Tillyard, Angus & Robertson, Ltd, Sydney, 1926, p368.
3. Family SYRPHIDAE - Australasian/Oceanian Diptera Catalog - Web Version, by F. Christian Thompson & J.R. Vockeroth, 2007. 
4. Syrphidae - Graeme's Insects of Townsville, Australia.  
5. A generic conspectus of the Microdontinae (Diptera: Syrphidae) with the description of two new genera from Africa and China - XIN-YUE CHENG & F. CHRISTIAN THOMPSON, Zootaxa 1879: 21–48 (2008). 

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Last updated: October 16, 2011.