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This one appears to show the characters of solivaga: an outer vertical (ve) and 4 decent length ad bristles on mid tibia, however it's less obvious on the left side. All the Thelaira at this site I've so far identified have been nigripes. I wonder what our Tachinidae experts think.

22/8/2009; Devon, England.

Thanks

Tim

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same fly, left side.

Tim

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I find myself feeling that this one is pretty convincing but I still have a few nagging doubts so let's wait for Theo ;)

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I agree, solivaga

for the reaons given

Theo

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Thanks both of you for the confirmation. It's interesting that both solivaga and nigripes occur at the same site, apparently even the same microhabitat. I've seen a lot of Thelaira here over the last few months but, as I say, everything positively identified so far has been nigripes. They seem to parasitise the same species (all those listed in Belshaw are common to abundant locally) so I wonder if their timing is different.

Tim