Perlate: beaded: bearing relieved, rounded points in series.
Perpendicular: upright: at right angles to horizontal.
Persicinus: the red of peach blossoms.
Persistent: remaining constantly; always present.
Personate: gaping wide open; masked; disguised.
Pes, Pedes: a foot feet.
Petiolar area or Petiolarea: on the metanotum of some Hymenoptera, the apical or hindmost of the three median cells 3d median area; apical area.
Petiolate: that series of Hymenoptera in which there is a slender stalk between the thorax and abdomen: = apocrita.
Petiolate: supported or placed on a stem or stalk; usually applied in describing venation and the method of attachment of abdomen to thorax.
Petiole: a stem or stalk: specifically the slender segment between the thorax and abdomen in many Hymenoptera, and some Diptera.