Pectoral plate: in Coleoptera, the sternum.
Pectunculate: with a row of minute appendages like the teeth of a comb: e.g. some maxillary structures.
Pectus: the ventral portion of thorax: variably applied in Coleoptera, for the entire meso- and meta-thorax: also the pro- and meso-sternum: in Diptera, is the inferior surface of the thorax between the legs.
Pedal line: in caterpillars: extends along the base of the feet.
Pedal tubercle: on the thoracic and abdominal rings of caterpillars: on the anterior side of leg-base and, correspondingly, on apodal segments: is VII of the abdomen where it consists of three setae: VI of the thorax where the setae are not numbered: constant (Dyar).
Pedamina: the aborted fore-legs of Nymphalid butterflies.
Pedate: foot-bearing, or having feet.
Peddler: applied to the larvae of such Cassid beetles as carry their excrement and cast skins on an anal fork.
Pedes: the feet, or really, legs.
Pedicellus or Pedicle: the third joint in a geniculate antenna: forming the pivot between scape and funicle: in general, a stalk or stem.