Metallic-blue Chalcid Wasp
Dorsal, Wings Closed
Ellura
Metallic-blue Chalcid Wasp
Ovi-positor, profile
 
                      
Metallic-blue Chalcid Wasp (Leucospis sp)Class: Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)
Order: Ant Bee Wasps (Hymenoptera)
Family: Parasitic Wasp (Wasp: Chalcidoidea: Leucospidae)     iNaturalist Observation
Species: Metallic-blue Chalcid Wasp (Leucospis sp)
This Photo:     🔍Profile🔎
Other name: Chalcidiod Wasp

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
1st record of this genus in South Australia
The 2 females we found were ~8mm & ~9mm, a visibly noticable size difference.
Superficially look like potter wasps, but with thick abdomens; which are similar to sawflies.
Very large rear legs, so a Chalcidid Wasp
Notice how generally they hold their wings vertically; normally a diagnostic for Vespidae potter wasps. But they "fold" their wings, note here their wings are "rolled". A subtle but important difference.
The most obvious charactieristic on close examination is the ovi-positor laying flat along the TOP of the abdomen! It even has a little parking pozzy on the thick waist to protect it.
It's covered in thick, white hairs/setae. Is also covered in punctuations and has a blue-metallic sheen everywhere the orange splashes aren't. We haven't found this colour pattern anywhere on-line. Others in the genus do tend to be a mix of orange & black/blue.The ocelli & rear leg spines are diagnostic to separate species. Also noticed some spines eminating from the rear of the thorax.
We found 2 female on one day in Dec.

Copyright © 2021-2022 Brett & Marie Smith. All Rights Reserved. Photographed 12-Dec-2021
This species is an Australian Native Species, not listed in the SA Murray Mallee Survey of 2010.