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 sex, 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. Post-alar membrane: the strip of membrane connecting the squamae with the scutellum. Postal vein: in Hymenoptera, = costa (Comst.). Post-annellus: in Hymenoptera, the 4th joint of antenna and 2d of flagellum. Post antennal organs: in Collembola, oblong or ellipsoidal organs situated just caudad of the bases of the antenna. Post-brachial: = pobrachial; q.v. Post-cerebral: applied to that pair of salivary glands in bees, situated close to the posterior wall of the head. Post-clypeus: in Odonata, the upper of the two parts into which the clypeus is divided: in Psocidae, a peculiar inflated structure behind the clypeus: in general, the posterior or upper part of clypeus when any line of demarcation exists: = supra-clypeus; nasus: afternose; paraclypeus: first clypeus; clypeus posterior. Post-costa: = sub-costa (Comst.): in Odonata, = 1st anal vein (Comst.): in Trichoptera = anal. Post-costal space: Odonata; the cell or cells lying posterior to the post-costa = anal cell (Comst.). Post-cubitals: = post-nodal spaces; q.v. Post-dorsulum: the middle piece of the meta-notum, between the mesophragma and post-scutellum. Post-embryonic -otic: the stage after the insect has come out of the egg. Post-epistoma: that part of the head behind the clypeus in Hymenoptera: see also post-clypeus. Posterior: hinder or hindmost: opposed to anterior: in Diptera; applied to that face of the legs which is not visible when viewed from the front, the legs being laterally extended. Posterior angle: of thorax, in Coleoptera, is the lateral angle near base of elytra: of the wings = hind angle; anal angle; q.v.