ue.

Phylogenetic: relating to tribal or stem development.

Phylogeny: the development of a genus, family, tribe or class: see
ontogeny.

Phyloptera: the super-ordinal term proposed to include all
the net-veined orders, the Orthoptera and Dermatoptera.

Phylum: a stem or tribe: used in classification to indicate a series of
related organisms.

Physopoda: bladder-footed: = Thysanoptera; q.v.

Phytophaga: plant-eaters: beetles in which the 4th and 5th tarsal
joints are anchylosed and the 3d is lobed.

Phytophagus: feeding upon plants.

Phytophilous: plant loving: species that live on plants.

Phytophthira: plant lice: some authors include also scale insects.

Phytoscopic: characters of light or conditions of illumination that
affect colors of caterpillars. {Scanner's comment: This is a
puzzling term. I suspect it is a misspelling of "Photoscopic"}

Piceous -eus: pitchy black.

Picine: black, with a bluish oily lustre.

Pick: a chitinous maxillary structure in Psocidae.

Pieza: the combined biting and sucking mouth of the Hymenoptera.

Piezata: the Fabrician term for Hymenoptera.

Pigment: any coloring matter or material that gives a color
appearance. {Scanner's comment: sic}

Pile: a hairy or fur-like covering: in Diptera, applied to thick, fine,
short, erect hair, giving a surface appearance like velvet.

Pilifer or Piliger: a small sclerite at each side of the clypeus in
Lepidoptera, resembling a rudimentary mandible.

Piliferous: with a covering of fine hair or pile.

Pillared eye: in Ephemerids, that type which is placed on a cylindrical
stalk or process: = turbinate eye.

Pilous or Pilose: clothed with down, or dense pile: with long, sparse
hair.

Pilosity: a covering of fine, long hair.

Pincers: the anal forceps.

Pinna: a narrow wing; a feather.

Pinnae: of posterior femur in jumping Orthoptera, are the oblique
ridges running to the median line and somewhat resembling a feather.

Pinnate: feather-like; cleft, like the wings of Alucita: with markings
resembling a feather: with stiff hairs or thorny processes occupying
opposite sides of a thin shank.

Pinnatifid: divided into feathers, as when wings are cleft nearly to the
base.

Pistazinus: yellowish green, with a slight brownish tinge [pale
green with a little burnt sienna].

Plaga: a spot, stripe or streak of color; a longitudinal spot of irregular
form.

Plaited: longitudinally folded or laid in pleats.

Planate: with a