Diachasmimorpha mellea (Gahan, 1915)
Biosteres rhagoletis Richmond, 1915 is a synonym (Gahan 1919).
In field experiments in Michigan, Feder observed lower rates of D. mellea parasitism in Rhagoletis pomonella that infested apples than in R. pomonella that infested hawthorne, their ancestral host fruit (Feder 1995). D. mellea females were unable to penetrate to the interior of the apples with their ovipositors, creating an enemy-free space for the fly larvae. Feder’s study confirmed the earlier observations by Porter (1928).