Rhagadolyra magnicornis

Lauxaniid fly at Acton, ACT

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Rhagadolyra magnicornis MichaelMulvaney 12 Sep 2024
Unverified kasiaaus 11 Sep 2024

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4 comments

   12 Sep 2024
Hi @MichaelMulvaney . I considered Rhagadolyra magnicornis but rejected it because I thought the pedicel on the antennae was different on the specimens I looked at (on iNaturalist). This one has short orange pedicels and the specimens on iNat had long brown ones. Is it a difference between sexes? The interesting thing was that I saw several of these flies (at least 8) and they all had short and orange pedicels. I also felt that the colouration of the abdomen was not quite right but I was most likely mistaken.
   12 Sep 2024
Could it be a Sapromyza sp.? It is possible that some of the flies identifies as Sapromyza sp. could be Rhagadolyra magnicornis and vice versa. All this assuming the pedicel shape and colour is significant.
   12 Sep 2024
Colour is a little difficult re image identification (and reliability) as colour can be greatly influenced by how an image is captured - I find Naturalist can be a good starting point but the galleries of Atlas of Living Australia are good for a final check - particularly if verified specimens are included. The colours in your images are similar to many of those on ALA. also the pattern of black on the abdomen and legs, hairs on the body and wing venation are a good match for Rhagadolyra.
   12 Sep 2024
Thanks Michael :-)

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Location information

Sighting information

  • 4 - 15 Abundance
  • 11 Sep 2024 12:39 PM Recorded on
  • kasiaaus Recorded by
  • 5mm to 12mm Animal size
  • Alive / healthy Animal health
  • Yes Insect on a flower

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