Oxychirotinae, [425]

Ozaenides, [214]

Pachypus, [187]

Packard, on Hymenopterous metamorphosis, [7]

Pad, of Lepidoptera, [314]

Paedogenesis, [303], [461]

Pagiopoda, [544]

Palaeolepidoptera, [366]

Palaeomicra, [435]

Palaeotropinae, [347]