Some authors have recognized two species of Baccha, B. elongata (Fabricius) and B. obscuripennis Meigen, based on the presence/absence of dust on the frons of the male. Males of B. obscuripennis usually lacks dust on the frontal triangle (van Veen 2004).
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith