Is this a bristle fly
Location: Healesville, Victoria Australia
November 29, 2010 2:53 pm
Hello Bugman, I believe this is a bristle fly going on the photos I’ve seen here. This is only the second of these flies I’ve ever seen here after 13 years of living in the area. It was seen in Healesville, Victoria, Australia on Nov 29th 2010, that’s just a couple of days before Summer.
The first time we posted a photo of this distinctive fly in 2007, we posted it as an unidentified Tachinid Fly. In 2009, we posted another image, still unidentified, and we eventually learned it is Amphibolia vidua and the common name Bristle Fly is used for the family Tachinidae, the Tachinid Flies. You are correct in calling your individual a Bristle Fly.
would you like some more photos for your files? I tried to put them on yesterday but they were all too big. I’m happy to email them to you if you want them.
Just to give you some more information- I’ve seen one of these flies once before here, about 5 years ago, it was very sluggish and divebombed me, and in my panic I swatted and killed it. The black shape on the rump (do flies have rumps?) was very slightly different to this one, it was a perfect heart shape. I assume they are the same type of fly and there’s just a bit of individual variation.
Thanks so much for getting back to me, your site is fantastic!
Thanks for the additional information and photos.
14 thoughts on “Bristle Fly from Australia: Amphibolia vidua”
The CSIRO’s giant tomes “The Insects of Australia” has a colour plate with one of these – but gives it as Formosia speciosa. Annoyingly, I can find no other mention of the species or genus online :/
Please send the link. A search of Formosia speciosa and CSIRO did not produce any hits. Perhaps the source material you cited was an actual printed volume.
Formosia (Euamphibolia) speciosa
And a Google search reveals several more Australian sources. It’s actually classified as a separate Genus, nowadays anyway.
d’oh – I shouldn’t have said “other mention online” should have I? Yes, it is actual printed media – a double volume of immense value to Australian entomologists
Thanks for the clarification.
Formosia (Euamphibolia) speciosa
i have found one of these flies today in Mount Barker Western Australia
I have seen and photographed one of these flys today, 30/12/2017 at Eggs and Bacon Bay, Tasmania
In reply to bugman:
Reference to Formosia speciosa does indeed exist online. Formosia (Euamphibolia) speciosa, in one instance, and Google search for that reveals several more Australian sources. It may have once been treated as the same species, Idk, but is now classified as a different Genus to Amphibolia vidua. In some ways they look similar, but not the same.
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Thanks for your research regarding this posting.
Thanks bugman, I thought it seemed not. A couple of unregistered posts only disappeared into the ether tho.. While registered posts remain, ‘awaiting moderation’. Oh, and.. I didn’t do much research for this posting, but I do a fair bit for my own interests anyway – which is specifically in Tasmanian species. Cheers.
I took some photos of one of these the other day in Margate Tas. Not heart shaped markings on the back though
Hi folks. I have just seen this same dude on my way back inside tonight. I’m in Montmorency, Victoria. It’s blue colouration of the dots caught my eye. I’ve never seen one here so had to try and identify it ….. curiosity and all that! Thanks for having this info. available so I could identify it.