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EXPLANATIONS OF TERMS USED IN TEXT.

P.

pallid, pallescent, pale or whitish-yellow.

palpi, palpus, articulated and movable organs attached to the maxillaeand mandibles (Fig. 26).palpiger, a process bearing a palpus (Fig. 26).pantherine, with markings like those of a panther.parasite, an animal which grows and lives upon another.patellar, pertaining to the patella or knee-cap.pectus, the breast or under surface of the thorax.pellicle, a thin skin or film.

pellucid, transparent; translucent, but not necessarilly colorless.penis, the genitals of the male (Fig. 40).pentagonal, five-sided.

percurrent, running through the entire length.piceous, piceus, pitchy; the color of pitch.pigment, coloring matter.pilose, having long, sparse hairs.pit, .a pronounced cavity.

plane, a level surface destitute of elevations or depressions.pleurite, lateral sclerites which connect the tergites to the sternites (Figs.31, 36).

plicate, having parallel raised lines; plaited or folded.

plumbeous, pale blue-gray, like lead.

podical plates, two plates (Figs. 38, 39).

polygonal, many sided.

post, a prefix meaning behind.

posterior, behind in position.

post-scutellum, (Figs. 28, 32).

prescutum, anterior division of a thorax (Fig. 28).

process, an outgrowth from the body of a sclerite.

pronotum, the shield which covers the front part of the thorax (Fig. 28).prosternum, the under surface of the thorax (Fig. 30).

prosternal spine, a spine projecting from the underside of the thorax (Figs.28, 29).

pro thorax, the anterior division of the thorax to which the head is joined(Fig. 28).

proventriculus, gizzard (Fig. 41).proximal, nearest; opposite of distal.

prozona, the anterior dorsal part of the pronotum (Fig. page 156).pubescent, covered with soft, short, and not crowded hair, wool or down.punctate, punctured; containing numerous small, point-like depressions orpunctures.

pupa, pupal, the second state of an insect after leaving the egg (Fig. 1, f.).pulvilli, pulrillus , the little pads between the claws (Fig. 35).pyloric, relating to the opening from the stomach to the intestine (Fig. 41).pyriform, pear-shaped.