Grey-legged Slender Fly
Orange Slender Fly
Orange-legged Slender Fly
Line-legged Slender Fly
Brown-legged Slender Fly
Black-legged Slender Fly
Wasp-mimic Robber Fly I
Wasp-mimic Robber Fly II
Zebra Robber Fly I
Zebra Robber Fly II 


Subfamily - Feathery Antennae Robber Flies

Family Asilidae

This page contains pictures and information about Feathery Antennae Robber Flies in subfamily Ommatiinae that we found in the Brisbane area, Queensland, Australia.

This subfamily is very closely related with Asilinae. They are sometimes put together as one subfamily Asilinae. Robber flies in this subfamily can be recognized by the antenna in plumose form, i.e., feather like. Marginal cell on wing is closed. Male of some species have the wings costa vine curved outwards. 
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Robber Flies in Subfamily Ommatiinae can be recognized by the following characteristics;
- antenna in plumose form, i.e., the feathery antennae,
- closed marginal cell on wings. 

Yellow Feathery Antennae Robber Fly
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Ommatius coeraebus, body length 20mm, female, male
Robber flies are active predators. They usually rest on leaf or stick about one to two meters above ground, watching if there is any prey flying pass. Robber flies capture prey by their powerful legs in mid air and consume while on wings. Please check this page for more information.
Grey Feathery Antennae Robber Fly
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Ommatius sp., body length 12mm, female, male
This robber fly is dark grey in colour with dark brown legs. Please check this page for more information.
Golden Feathery Antennae Robber Fly
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Ommatius sp., body length 30mm, female, male
Please check this page for more information. 
1. Keys -  Robber Flies (Asilidae) Home page, by Fritz Geller-Grimm, Torsten Dikow, Robert J. Lavigne 
2. Northern Territory Insects, A Comprehensive Guide CD - Graham Brown, 2009.
3. Family ASILIDAE Robber Flies - Australian Biological Resources Study, Australian Faunal Directory.
4. Australian Asilidae - Dr. Robert Lavigne, Honorary Research Associate, South Australian Museum, Adelaide, SA. 

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Last updated: October 19, 2012.