Patterned-wing Snipe Fly
Black Snipe Fly
Grey Snipe Fly
Golden Snipe Fly 
Slender March Fly
Flower-feeding March Fly
Greyish-Brown March Fly
Banded-wing March Fly
Australian March Fly
Yellowish-brown March Fly
Reddish-brown March Fly
Brown March Fly
Garden Soldier Fly
Black Solder Fly
Green Soldier Fly 
Brown Soldier Fly
Brown Tangle-vein Fly  
Yellow Tangle-vein Fly
Bladder Fly
Unknown Flies

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Small-head Flies - Family Acroceridae (Cyrtidae)

Order Diptera  

This page contains pictures and information about Small-head Flies that we found in the Brisbane area, Queensland, Australia. Flies in this family are also known as Bladder flies.
Flies in this family are also known as Bladder flies for they have the swollen, bladder-like thorax and the small head.  

Bladder Fly
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Ogcodes (Oncodes) sp., body length 6mm
We found this fly once in Carbrook Wetland on Sep 2009. The fly was resting on a large gum tree trunk about 0.5 meter from ground. It was steel blue in colour with scout body. Its small head was entirely covered by its compound eyes. Its legs were all white in colours. When we came too closely, it flied to the other side of the tree trunk. Although its wings were relatively small comparing with it body, it was a good flier just like a normal fly. Please check this page for more information.
Small-head Fly 2
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Ogcodes sp., body length 5mm 
Gerard advised that: for sure an Acrocerid, so family Acroceridae. Larvae are parasites in spiders! We found this fly when it was resting on leaf next to a empty pupa case which was attached by silk next to a empty spider nest. 

1. Insects of Australia - CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, p755.
2. Insects of Australia and New Zealand - R. J. Tillyard, Angus & Robertson, Ltd, Sydney, 1926, p360.
3. On the Fly, The Interactive Atlas and Key to Australian Fly Families CD Rom - Hamilton, J. et al. 2006. Brisbane : CBIT & ABRS. 

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Last updated: March 03, 2013.