Procephalic lobes, [97], [150]

Prochilides, [328]

Prochilus australis, [324]

Proctodaeum, [123], [151];

in Musca, [124]

Proctotrypidae, [533]-[538]

Production of sex, [499]

Pro-legs, [514]

Pronotal wing-rudiments, [344], [395]

Pronotum, [88], [100];