Chamaesphegina argentifacies Shannon & Aubertin
Diagnostic description:
Chamaesphegina argentifacies Shannon & Aubertin, 1933.
Shannon, R.C. & Aubertin, D. (1933) Syrphidae. Diptera of Patagonia and South Chile 3, 120-170. [1933.11.25]
Distribution:
Species known from Argentina and Chile (Thompson 2010).