Porphyraspis tristis, [284]

Porphyrophora polonica, [597]

Porrorhynchus, [216]

Portschinsky, on habits and development of Muscidae, [507], [512]

Post-metamorphic growth, [141]

Post-scutellum, [307], [312]

Potamogeton pectinatus, beetle on, [280]

Potamophilus acuminatus, [244]

Potassium hydroxide, [328], [384]

Potato-beetle, [278]