Thread subject: Diptera.info :: Questions "Radio-cubital node" Helina?
Posted by smol on 28-01-2023 14:06
I have been trying to identify Helinas from photos (not caught) for a long time. Though difficult, the only characteristic I am not sure about any more is the "Radio cubital node". The keys from "Mikes Insect Keys" requires looking for "small setulae on the underside"; A Couple of questions about this:
1. I really could not find the exact location of the "Radio cubital node". Would someone help me in the right direction? (for example, on https://www.flickr.com/photos/63075200@N07/52307254220/).
2. How small are they? Obviously, without catching the specimen, most of the time I cannot make pictures from under the wing. Would pictures from the side/top also show the setulae? (Related to the first point, but I always thought it was this big setulae on https://www.flickr.com/photos/63075200@N07/52307237909).
Hopefully someone can point me in the right direction :)