Explanation of Terms Used in Entomology Part 63

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 a.n.a.l opening; = supra-a.n.a.l or sur-a.n.a.l 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: = a.n.a.l valves: para.n.a.l 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.

Poisers: = halteres and balancers; q.v.

Poison glands: sometimes applied to the salivary glands of bugs and biting flies; more usually to an abdominal gland connected with the sting of female Hymenoptera.

Policate: a tibia produced inwardly into a short, bent spine or thumb.

Politus: smooth, shiny, polished.

Pollen: a dusty or pruinose surface covering which is easily rubbed off; used mostly in Diptera.

Pollen-plate: a polished area margined by hair, on the outer face of the tibia in bees.

Pollex: a thumb: the stout fixed spur at inside of tip of tibia.

Pollicatus: = policate; q.v.

Polliniferous: formed for collecting pollen: pollen bearing.

Pollinigerous: = polliniferous: q.v.

Pollinose: covered with a yellow, pollen-like dust.

Poly-: many, much.

Polyandry: where a female mates with more than one male.

Polychromatic: many colored.

Polydomous: applied to ants when one colony has several nests.

Polyembryony: the production of several embryos from a single egg, as in some Chalcids.

Polygamy: where a male mates with more than one female.

Polygonal: with many angles.

Polygoneutism: the power to preduce several broods in one season.

Polymorpha: the claviform and serricorn Coleoptera, as a whole.

Polymorphic-ous: occurring in several forms; differing in s.e.x, In season, in locality or without apparent reason: undergoing Several changes, and in this sense applied to insects with a complete metamorphosis.

Polynephria: applied to insects with many urinary (Malpighian) tubes.

Polyphagous: eating many kinds of food.

Polyphyletic: derived or descended from several stems or sources.

Polypodous: having many feet, and thus, specifically applied to the Myriapoda, and to the larvae of Lepidoptera and saw-flies, in contradistinction to footless and hexapodous larvae.

Ponderable: that which may be weighed.

Pone: behind (the middle).

Ponticulus: = frenulum; q.v.

Porcate: marked with raised longitudinal lines.

Pore: any small, round opening on the surface.

Poriferous: closely set with deep pittings or punctures.

Porose -us: with little round openings on the surface.

Porrect: stretched out forward: straightly prominent.

Post-: behind or after.

Post-alar callosities: rounded processes at the posterior lateral margin of the dorsum, in Diptera.

Post-alar callus: in Diptera, a rounded swelling between the root of the wing and the scutellum.