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All Bactra species? (Cumbria, UK) (1 Viewer)


Well-known member

These three micros were all found at Orton Moss to the south of Carlisle yesterday no more than 10m apart. They were all in a woodland glade in an area that's very boggy for at least 6 months of the year. For what it's worth, my best estimate lengths (from palp tip to wing tip) were (1) 10.0, (2) 11.5 and (3) 9.5mm.

Would I be right in thinking that they are all Bactra species? I was hoping at the time that item 3 might be something else, but I've since read that some of them have unicolorous forms, so perhaps not.

According to S&P the habitat only suits furfurana and lancealana, but I don't know whether this can be used to definitively rule out lacteana and robustana.

It's a bit of a longshot, but is it possible to identify any of these down to species level from these photos?




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My books imply gen det needed to get to species. They certainly look very similar.
Which probably doesn't help much :(
Thanks, Rubia.

I'd been pinning my hopes on the third one, as I thought it might either be from a different genus, or that it was perhaps distinctive enough to be indicative of a particular Bactra species. However, I now doubt that either of these things are true, and so I'll just concede defeat and label them all as Bactra sp!

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