pen-y-bont_mike's picture

Fly

Observed: 24th May 2010 By: pen-y-bont_mikepen-y-bont_mike’s reputation in Invertebratespen-y-bont_mike’s reputation in Invertebratespen-y-bont_mike’s reputation in Invertebratespen-y-bont_mike’s reputation in Invertebrates
IMG_0381_UMT
IMG_0385_UMT
Description:

Another old observation.
It was very small and active so difficult to get near to and accurately estimate size. A note I made a few hours later suggested that it was approx 4mm!
Edit- see my comment below. New estimate of size is approx 8mm.

Identifications
Species interactions

No interactions present.

Comments

ophrys's picture

Microdon

If I am right on this, it is a very unusual hovefly, one whose larvae grow up in the nests of particular species of ants. It is very uncommon...one I have never seen. Good sighting...well done.

Ian
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Syrphus's picture

This genus is very odd - I

This genus is very odd - I have been lucky enough to see two adult M. analis up here, and been thrown by their appearance both times. Most syrphologists find the larvae in ant nests, but I can't bring myself to disturb the nests that much.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

pen-y-bont_mike's picture

Microdon

Thank you very much for your identifications and comments. In view of the unusual nature of the observation I have reviewed the photos in some detail and I am now sure that I seriously under estimated the size. It now seems that the actual size was double that stated above i.e. approx 8mm.

If this is inconsistent with your Microdon identifications I am sorry for the time you wasted in looking at this for me.

rimo's picture

8mm is OK for Microdon,

8mm is OK for Microdon, unless the ones I've reared through were real freaks!

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