. "1987"^^ . . "Pennacchio & Tremblay (1987)" . . "Pennacchio, F. & Tremblay, E. 1987. Biosystematic and morphological study of two Aphidius ervi Haliday (Hymenoptera, Braconidae) 'biotypes' with the description of a new species. Bollettino del Laboratorio di Entomologia Agraria Filippo Silvestri, 43: 105-117." . "1987"^^ . "Pennacchio & Tremblay (1987)" .