yorkie's picture

Unknown fly

Observed: 12th May 2010 By: yorkieyorkie’s reputation in Invertebratesyorkie’s reputation in Invertebratesyorkie’s reputation in Invertebratesyorkie’s reputation in Invertebrates
10 IMG_2158.JPG
Description:

Fly with swollen metatarsi?

Identifications
Species interactions

No interactions present.

Comments

anonymous spotter's picture

St Mark's Fly

it looks very like this, but I find arthropods confusing! In flight they are unmistakable though, with kegs hanging down.

Jonathan's picture

There have been lots of St

There have been lots of St Marks flies seen in the last few days and this looks like another to my untutored eye. The huge eyes seem to be diagnostic

Jonathan
University of Edinburgh and Biodiversity Observatory (OU)

anonymous spotter's picture

The eyes -

- are an indicator that this is a male, according to Chinnery. Females have smaller, wide-set eyes.

Martin Harvey's picture

empidid fly

I can see the similarity, but this one isn't a St Mark's fly! It's one of the many species in family Empididae, and I think most likely to be in genus Hilara.

If you compare with this St Mark's Fly (by kcf32):
http://www.ispot.org.uk/image/view/31516/_original

you can see that Hilara is less hairy overall, has fewer spines on the legs, and different wing venation.

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Entomologist and biological recorder