Part 111

Pleuron: the side of the thorax.

Pleuropodia: embryonic or temporary bands formed by the modified first pair of abdominal legs in many insects.

Pleurostict: lamellicorn beetles in which the abdominal spiracles are situated on the dorsal portion of the ventral sclerites.

Pleurum: = pleuron; plural, pleura; q.v.

Plexus: a knot: applied to a knot-like mass of nerves, or tracheae.

Plica: a fold or wrinkle: a longitudinal plait of a wing.

Plicate: plaited; folded like a fan.

Plications: folding,; applied to the folds on the hind wings of Orthoptera.

Plicipenna: = Trichoptera; proposed by Latreille.

Plumate: like a feather.

Plumbeus: leaden or bluish gray [neutral].

Plumose: feathered; like a plume: antennae that have long ciliated processes on each side of each joint: see cirrate.

Plump: with full, rounded outlines; not obese.

Plumules: specialized scales of the androconia of male Lepidoptera.

Pluri: as a prefix, means many.

Pluri-dentate: with many teeth.

Pluri-setose: bearing several seta; as the head in some Carabids.

Pluri-valve: with several valves or valve-like appendages.

Pneumogastric: the ganglion supplying nerves for the tracheal and digestive system: also used as = vagus: q.v.

Pneustocera: breathing horns: the prolongations of the metathoracic spiracles in Berytidae, etc.

Pnystega: in Odonata, applied by Charpentier to a portion of mesonotum.

Pobrachial: a longitudinal vein of the Ephemerid wing just behind praebrachial; usually simple: number 7 of some systems.

Podeon: in Hymenoptera, the petiole: the true second abdominal segment.

Podex: the upper plate of the anal opening; = supra-anal or sur-anal plate in caterpillars.

Podical plates: the latero-ventral plates attached to the loth abdominal segment of Orthoptera; the two pieces on each side of the vent, thought by Huxley to be rudiments of an 11th abdominal ring; united they form the tergite of a rudimentary ring: = anal valves: paranal lobes.

Pododunera: apterous insects with biting mouth structures.

Podotheca: that part of pupa that covers the legs of future adult.

Poecilocyttares: social wasps that build their combs around the branch or other support covered by the envelope: see stelocyttares and phragmocyttares.