Orange-backed Robber Fly
S2, Female: feeding
Ellura
Orange-backed Robber Fly
S9, Female, ventral
 
                      
Orange-backed Robber Fly (Mauropteron pelago)Class: Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)
Order: Flies (Diptera)
Family: Robber Fly (Asilidae)     iNaturalist Observation
Species: Orange-backed Robber Fly (Mauropteron pelago)
This Photo:     S6, Male: ventral

Thank you Stephen Fricker, Mark Hura, Dr Chris Cohen & David Muirhead for confirming the id of this species for us

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
Males ~29mm long, females ~34mm long.
The genders can be differentiated by the male have a bulbous clasp at the end of it's "tail". The female has a thin posterior to the abdomen.
The orange back is surprisingly difficult to see.
Obvious in flight if it's below you, or when it's cleaning itself

We photographed 14 specimens (9 females & 5 males), in Dec, Jan, Feb, Mar & Apr.

Copyright © 2019-2022 Brett & Marie Smith. All Rights Reserved. Photographed 18-Dec-2019
This species is an Australian Native Species, not listed in the SA Murray Mallee Survey of 2010.