#1
Still a Diptera novice here, so I want to be sure I know what this is.
I'm using a key to Nearctic Helina, and one of the early couplets is:
"Pra as long as, and usually longer than, anterior notopleural bristle" vs "Pra shorter than anterior notopleural bristle"
What specifically is "Pra"? I'm assuming it refers to setae, but I haven't seen this abbreviation in other references.
Many thanks,
Brad