Rivellia are very common here, in the North of Portugal. I think this could be R. syngenesiae, but I don't know how R. hispanica looks like. The photos show a specimen feeding on bird droppings.
location: Vila Nova de Gaia, Portugal
date: 31/05/2009
Video: YouTube Video
Posted by Paul Beuk on 01-06-2009 09:12
#2
I don't know R. hispanica either, but the small clear marking in the apical wing spot is rather uncommon in R. syngenesiae. Whether that would be a difference with syngenesiae, I don't know.
Posted by Andre on 01-06-2009 10:46
#3
You can send it along with the Syrphidae. I will try to get it to a specialist here if you want.
Posted by Rui Andrade on 02-06-2009 01:38
#4
Thank you Paul. I checked other photos from different specimens and this one is the only one with that clear marking on the wing.
Thank you too Andre. Unfortunately I didn't collect this specimen. I'll try to find more with this kind of wing pattern and it would be very nice to have an ID.:)
