544 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Pagina: the central portion of the outer face of the hind femora, showing a 
herring-bone pattern of sculpture due to the muscle impressions. 
Pallium: the membrane closing dorsally the cavity formed by the subgenital 
plate. 
Palp {-us): pi. -palps {-i): jointed, antenna-hke appendages of the maxillae 
and labium. 
Per current: continuous and complete. 
Piceov^: lustrous pitchy black. 
Pleura (sing, -on): the sides of the thorax and abdomen; the lateral sclerites 
of the thorax between the terga and sterna. 
Podical plates: the latero-dorsal plates underlying the cerci and attached to 
the tenth tergum of the abdomen. 
Praescutum; prescutum: the anterior or first of the four divisions of the notum 
of each thoracic segment. 
Pregenicular annulus: a band of color on the hind femora a little before the 
knee-joint. 
Principal sulcus: the suture between the third and fourth divisions of the 
pronotum, dividing it into prozone and metazone, often marked by a 
deep notch where it crosses the median carina. 
Prismatic: shaped like a prism in section. 
Process: a prolongation of or protuberance from a margin or surface. 
Produced: extended, prolonged. 
Pro7iotal carina: the median carina of the pronotum. 
Pronotum: the dorsal part of the prothorax. 
Prosternal spine: a prominence between the front legs arising from the pro- 
sternum. 
Prothorax: the anterior segment of the thorax. 
Proximad, -al: toward the basal or proximal end or the point of attachment. 
Prozona, prozone: the dorsal surface of the pronotum in front of the principal 
sulcus. 
Pulvillus (-i): fleshy pads beneath the tarsal segments and claws. 
Punctate: bearing point-like impressions or dots of color. 
Pygidium: see Forficulidae, note. 
Quadrate: four-sided, rectangular, nearly square. 
Quiescent: not active, — said of the pupa in most forms with complete metamor- 
phosis. 
Race: a variety of a species which possesses distinctive characters of less than 
specific value, usually intergrading with other races or the typical form 
of the species, and often differing in geographical distribution. 
Raptorial: formed for seizing prey. 
Reticulate: having a pattern like net-work. 
Saxicolous: frequenting rocky or stony areas. 
Scapular area of pronotum: in certain Acrydiinae a narrow triangular or 
linear area on the disk of the pronotum between the lateral and humero- 
apical carinae. 
Sclerite: a stiflfened or hard portion of the body wall. 
