Patulous-ose: open, spreading.
Paunch: a crop-like accessory pouch in some Mallophaga: any pouch- like appendage of the alimentary canal.
Paurometabolous: metamorphosis in which the changes of form are gradual and inconspicuous: e.g. Orthoptera and most Rhynchota.
Pavillions: the sheds or cells sometimes built by ants as a shelter for groups of plant lice.
Paxilla: a small stake or peg: a bundle of spicular processes.
Pearlaceous: having the appearance of pearl.
Pecten: a comb: in Hymenoptera, rigid, incurred setae on the basal parts of maxilla and labium: the rows of spines on the feet of pollen- gathering bees: any series of bristles arranged like a comb: in mosquito larvae the comb-like teeth on the breathing tube.
Pectinate: comb-shaped: with even branches like the teeth of a comb.
Pectinato-fimbriate: having pectinations that are fringed with hair.
Pectoralis: relating to the breast.