#1
I'm not sure that is a hover. My ignorance is great.
Someone knows?
Greetings from Granada, Spain
#3
Very grateful for your response. Other views that have given me also agree with your proposal. Though some also point to the possibility of "Eristalis sepulchralis.
Those of you know about this, shall know to decide
Greetings
PD. I've been looking at alternatives and I think you're right: Eristalinus aeneus
Greetings