Diptera.info

Posted by Stephen R on 05-11-2009 11:14

I think this is right, but would be grateful for confirmation.
Lancashire Oct 30.

Edited by Stephen R on 05-11-2009 23:52

Posted by Robert Heemskerk on 05-11-2009 22:44

Could you draw 'an arrow' at the spot/place of setae on R3+4?

I cannot find these 'R3 + R4' in my book

I'll like to know ;)

Posted by Stephen R on 05-11-2009 23:35

Thanks Katka!

Robert, I have no editing software on this machine, but if you start at the bottom right corner of this picture and work upwards, the first vein is the costa, the next is called R(2+3) and the third I think is R(4+5) - I think I was wrong to call it R3+4; I think some older books just call this one 'Vein 3'. R1 ('Vein 1' in the old system) joins the costa just after the middle of the picture. (In some flies the radial vein has more divisions, hence the odd names.) You can see the hairs on R4+5 around the centre of the image. Confused? No doubt someone will correct me if I've got this wrong:)

Stephen.

Edited by Stephen R on 05-11-2009 23:45

Posted by Robert Heemskerk on 05-11-2009 23:54

Thank you for this explenation Stephen,

I've tried to draw some arrows, just where I think I see these setae.
Am I right?
Or is it my imagination? (it's bedtime..) :o

Edited by Robert Heemskerk on 05-11-2009 23:54