Thread subject: Diptera.info :: Ectophasia oblonga?

Posted by johnes81 on 12-08-2017 13:51
#1

I wish to re-evaluate my understanding of Ectophasia.
I have identified an Ectophasia as oblonga based upon keys of Tschorsnig.

According to Tschorsnig, the longitudinal stripe should be a maximum of 1/8 of the abdomen width.
The abdomen should be longer than wide.

I am confused about the color. I think that the species in my photo is orange not yellow.
But if you compare it to the color red, then it is more yellow. Does color really matter?

I would like confirmation that the species in my photo is indeed oblonga.
Otherwise, I will assume that I am misunderstanding Tschorsnig's keys or his keys are not accurate.