Thread subject: Diptera.info :: Mayflies

Posted by Roger Thomason on 11-08-2010 00:42
#1

Photographed the lower one at the Burn of Valayre sitting on a leaf. The top one was found in my beard on return to my house (god knows what else might be in there). Anyone know anything about these..genus or further?

EDIT; Top one was playing Possum...released alive and well.

Edited by Roger Thomason on 11-08-2010 00:44

Posted by paqui on 11-08-2010 18:09
#2

Hi, this keys were valid at least until 1989
- Males / hindwing present (maybe reduced) / 2 tails / turbinate compound eye / 2 small veins between the longer ones (wing´s posterior margin) -> Baetis.
The first one seems so (B. rhodani? B. vernus?), but I can´t see it clearly in the second, in case it has one single small vein between the other 2 it would be Centroptilum (?)

Posted by daandrukker on 25-10-2018 10:58
#3

Imago is B. rhodani indeed. The subimago below could as well be rhodani, or maybe vernus or even niger/digitatus. A close-up of the hind wing could provide a definite answer. The hindwing of Centroptilum is much smaller and pointy/spur shaped