Insects
True flies (Diptera)
Other true flies

Other true flies

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Other true flies

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Discussion

kasiaaus wrote:
7 hrs ago
Thank you @DiBickers. I did not see any mud nest nearby so it is probably a fly larva. The spider with the parasite was on a gum tree trunk about 1.5m off the ground.
Unverified Other true fly
DiBickers wrote:
11 hrs ago
@kasiaaus if these spiders were found near a broken mud nest it’s likely the grub is a wasp larva. If you found it out in the open with no nest nearby it’s likely this is a fly larva. An example that target spiders are the small-headed flies (Family Acroceridae). Unfortunately, I’ve never seen them ID’d in these instances & the only way to ensure identification is truly accurate would be to raise it and see what hatches after the larva pupates.
Unverified Other true fly
HelenCross wrote:
2 Jun 2025
Thanks Don
Ortholfersia (genus)
DonFletcher wrote:
2 Jun 2025
Hi Helen, Yes I have seen small, brown, fast moving parasitic flies on EGKs, but only occasionally. Sorry I dont know their ID.
Ortholfersia (genus)
HelenCross wrote:
2 Jun 2025
Not sure if I've got the ID correct but have you seen these flies on macropods @DonFletcher ?
Ortholfersia (genus)

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