Long-tailed Wasp
Blue-eyed Hatchet Wasp
Yellow-antenna Hatchet Wasp
White-dotted Hatchet Wasp
Round-headed Hatchet Wasp 
Gasteruptiid Wasp
Small Gasteruptiid Wasp 


Hatchet Wasps - Family EVANIIDAE

Order Hymenoptera

This page contains pictures and information about the Hatchet Wasps in Family Evaniidae that we found in the Brisbane area, Queensland, Australia. They are also known as Ensign Wasps.
The Hatchet Wasps have the flat and short abdomen which look like a hatchet. The "hatchet" moves up and down when the wasp walks. They are mostly black in colours. Antenna is 13-segmented. They rest with fore wings fold longitudinally. 
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They are solitary wasps parasitic on cockroach oothecae. They are usually found searching hosts on tree trunk, leaf litter and in buildings. 

Blue-eyed Hatchet Wasp
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Evania appendigaster, body length 15mm
We quite often find this wasp outside our house resting on the wall alone but do not know why they were there. They may be waiting for the cockroach. Please check this page for more information.
Yellow-antennae Hatchet Wasp
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? Evania sp., body length 15mm
We found this Hatchet Wasp in Ford Road Conservation Area on Oct 2010. Please check this page for more information.
White-dotted Hatchet Wasp
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? sp., body length 15mm
We found this wasp in Carbrook Wetland on Mar 2010. Please check this page for more information.
Round-headed Hatchet Wasp
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Szepligetella sp., body length 15mm
We found this wasp in Yimbin Park on Dec 2010. Please check this page for more information. 

1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, pp 941.
2. Northern Territory Insects, A Comprehensive Guide CD - Graham Brown, 2009.
3. What wasp is that? - An interactive identification guide to the Australasian families of Hymenoptera, 2007.
4. Family EVANIIDAE - Australian Biological Resources Study, Australian Faunal Directory. 

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Last updated: September 14, 2012.