retinal, [98]

Pillared eyes, [430]

Pimpla, [553], [557]

Pimplides, [557]

Pitfalls of ant-lions, [455], [459]

Planipennia, [342]

Plantula, [105]

Plateau, on marine Myriapods, [30];

on digestion, [127];

on sight, [416]