pun_logo

The Society for the study of flies (Diptera)

Affiliated to the British Entomological and Natural History Society (BENHS)

You are not logged in.

#1 2017-07-17 09:31:49

Gateside
DF Members
Name: Nigel Gilligan
From: Cumbria
Registered: 2011-08-26
Posts: 860

Tipula sp, with prominent wing streak, but no obvious ID

This is a medium-sized cranefly, with a prominent, broad white wing streak, that almost spans the wing. But it doesn't fit any of the obvious candidates.  However it has a reasonable likeness for T.fascipennis, yet the body is completely wrong.

It has a good likeness to T.affinis and T.trispinosa (especially the latter, where the body features match too) but neither are UK species.

Apart from the very upturned abdomen on this male, the thorax is almost devoid of notable features. But the venation is odd - vein M2 is almost straight all the way from the discal cell (or does it get called M1+2 there?) and M1 curves off it at a slight darkening (this is an unusual feature too). The discal cell is seen to actually be open on the wing view that's almost top-down, but a bit blurred towards the apex. The other view is sharper, but doesn't show that oddity so well.

I couldn't get other angles on this cranefly because it was down amongst bracken. I used the kolumbus web site for venation.

I am at a loss.

Nigel G.


Uploaded Images

Last edited by Gateside (2017-07-17 09:36:22)

Offline

 

#2 2017-07-17 21:42:22

johnkramer
DF Members
Name: John Kramer
From: Oadby, Leicester
Registered: 2008-02-20
Posts: 222

Re: Tipula sp, with prominent wing streak, but no obvious ID

Nice sharp photo !!  This is a female Tipula (Lunaripula) fascipennis.  The white wing bar goes right across the wing, and it has a shorter ovipositor than average.  It is a common woodland species.
John K

Offline

 

#3 2017-07-17 23:18:38

Gateside
DF Members
Name: Nigel Gilligan
From: Cumbria
Registered: 2011-08-26
Posts: 860

Re: Tipula sp, with prominent wing streak, but no obvious ID

Thanks John.

Well I'd got that as a possible, but as I'd said before, the body seemed wrong, with mine having a grey thorax, and not a lot of tan / brown on the abdomen either. The reference images I can find did not convince me that it was as simple as that. And the wing streak is so prominent and long. Either I'm looking at not the best reference images, or mine's an example of what's a bit extreme, but still consistent with the species!

I don't normally have so much trouble with a cranefly ID!

Nigel G.

Offline

 

Board footer

Powered by PunBB
© Copyright 2002–2005 Rickard Andersson