Cerdistus sp. (genus)

Slender Robber Fly at Fisher, ACT

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Identification history

	Cerdistus sp. (genus)	22 Feb 2020	GregD
	Unverified	22 Jan 2020	EvanT

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User's notes

Does anyone know what this is? It was moving it’s tail around, almost like it was feeling for something.

2 comments

MichaelBedingfield wrote:

22 Feb 2020

Referred to our robber fly moderator.

GregD wrote:

22 Feb 2020

The 'tail' is the ovipositor and presumably the fly was sensing if the substrate was suitable for oviposition. The group mostly seek out seed heads (often but not always grasses) as a suitable site. A confused fly?

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Location information

Coordinates 149.060625 -35.362923
Places Fisher, ACT

Sighting information

At least 1 Abundance
22 Jan 2020 10:20 AM Recorded on
EvanT Recorded by
Collections
EvanT Canberra & Southern Tablelands NatureMapr Robber flies (Asilidae) True flies (Diptera) Insects

Additional information

12mm to 25mm Animal size

Species information

Cerdistus sp. (genus) Scientific name
Slender Robber Fly Common name
Not Sensitive
Local native
Non-invasive or negligible
Up to 1641.6m Recorded at altitude
Machine learning
External link More information

Record quality

Images or audio
More than one media file
Verified by an expert moderator
Nearby sighting(s) of same species
GPS evidence of location
Description
Additional attributes

Australian Capital Territory

New South Wales

Queensland

Northern Territory

Western Australia

South Australia

Victoria

Tasmania