Rivard, I. 1967. Opius lectus and O. alloeus, larval parasites of the apple maggot, Rhagoletis pomonella (Diptera: Trypetidae), in Quebec Canadian Entomologist 99:895-896
Rivard, I. 1967. Opius lectus and O. alloeus, larval parasites of the apple maggot, Rhagoletis pomonella (Diptera: Trypetidae), in Quebec Canadian Entomologist 99:895-896