Sheep Nasal Bot Fly
S5, Female, ventral
Ellura
Scuttle Fly
S1, Halteres just visible
 
                 
Sheep Nasal Bot Fly (Oestrus ovis)Class: Animals (Animalia) - Jointed Legs (Arthropoda) - Insects (Insecta)
Order: Flies (Diptera)
Family: Bot Fly (Oestridae)     iNaturalist Observation
Species: Sheep Nasal Bot Fly (Oestrus ovis)
This Photo:     🔍S6, Female, ventral🔎

Thank you Dr Chris Lambkin for confirming the id of this species for us

General Species Information:
Found on Ellura (in the Murray Mallee, SA) and elsewhere
~11mm to ~11.5mm long.
Males have a much narrow frons (eyes closer together, but not touching) than the females shown here.
Notice the difference amount of black between the species. Generally it looks like S6 is very pale compared to most images on line. Perhaps freshly molted?
These have a very rounded face (pug like) and a non-functioning mouth parts; the adults don't feed and are short lived.

Copyright © 2025-2026 Brett & Marie Smith. All Rights Reserved. Photographed 25-Apr-2025
This species is classed as If (Foreign Introduction)