RobSpot's picture

Conopid fly for id

Observed: 11th July 2012 By: RobSpotRobSpot’s reputation in InvertebratesRobSpot’s reputation in InvertebratesRobSpot’s reputation in Invertebrates
grey conopid fly1
grey conopid fly2
Description:

A grey conopid fly seen feeding on Field Scabious in the road verge. Is it a species of Thecophora?

Identifications
Species interactions

No interactions present.

Comments

ophrys's picture

Thecophora

I think you are right, though I have never seen one. Assuming it is Thecophora, it would seem to key out as Thecophora atra, with hind femora only orange at the base and second antennal segment long.

There is also Zodion to consider, though.

Ian
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RobSpot's picture

Thank you

Following up on your suggestion I found some photos of Thecophora and Zodion on the internet. I think the markings on the abdomen and the shape of the proboscis more closely resemble Thecophora. Interesting flies - I've read that they latch onto bees to attach their eggs, though not found a photo of this.

ophrys's picture

Agreed

Yes, I think that Thecophora atra is most likely. Conopids are great flies...striking appearance and interesting life histories. If you check out flowering thistles and ragwort, through July and August, you should find others, like the colourful Conops flavipes. The common conopid at the moment is Sicus ferrugineus, which is relatively easy to find in flowery areas at wood edges.

Ian
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