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I'm not able to identify this fly from hailes abbey at the weekend. It looks greenish but I've ruled out Lydina on the antennae and venation. Is it possible to say what it might be?

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Nothing rings bells at the moment, from this photo. Lydina would have a strong pteropleural bristle with equal-sized, paired lappets on the hind spiracle :)

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I think it is the female of Macquartia tenebricosa and that we are struggling because the so typical head profile is not visible in this picture.


Theo

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Hmm, maybe it's a bad angle but it looks to have 4 pairs of scutellar marginals :/

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I t is from Britain, jeremy, to be VERY sure on this ?

Theo

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Rigth Chris !

Imran it through Moschweb, and no match with any british genus.

Theo

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Hmm, here's hoping Jeremy caught it then! :D

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Hi Jeremy, I see it as Lydina, the wing and antennae are consistent I think - there are bristles to half way along r4+5 if you look close.
Steve

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this one is from Glos, and I've assumed it's the same species as this one from herts http://www.diptera.info/forum/viewthread.php?thread_id=62788 - where the day before I caught a Lydina, which has flattened antennae 3 (in profile) and what looks like a tiny petiole. Neither of these have it and the antennae are thin.

here's a picture from the front, and one showing more of a profile, and the best I can do on the wing, which seems to show just a few hairs

cheers

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profile

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wing

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Females of many species have thinner antennae than the males, as is the case for Lydina. Compare with the photo of a female on Chris Raper's site ,

http://tachinidae.org.uk/blog/wp-content/uploads/Lydina-aenea-Red-Cow-Cholsey-2011-08-15_001.jpg

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Yeah, the more photos I see of it, the more it looks like Lydina aenea :)