ORTHOPTERA OF INDIANA. 469 



Obconic. — Conical, with the vertex pointing downward. 



Ohlique. — Slanting; when applied to the face, denotes that it slopes 

 nnder and l)ackward toward the breast. 



OhloiKj. — AVitli the transverse diameter much shorter than the longi- 

 tudinal. 



Obsolete. — Wanting or ]iearly so; indistinct. 



Obtuse. — Blunt. 



Ocellus, orelli. — The three simple eyes. 



Occiput. — The hack part of the head. 



Omnivorous. — Iviting everything eaiahle. 



Obtlieca. — A case enclosing eggs. 



Opaque. — AVithout any lustre; impenetrable by light rays. 



Ovipositor. — Tiie organ for depositing eggs. 



Oripositlon. — The act of laying eggs. 



Pallid. — Pale or wliitish yellow.. 



Palpus, palpi. — Articulated and movable organs attached to the 

 maxilla^ and mandibles. 



Parasite. — An animal which grows and lives upon another. 



Pellucid. — 'JVans]uirent; translucent, 1mt not necessarily colorless 



Pentagonal. — Five-sided. 



Percurrent. — l^unning through the entire length. 



Piceous. — Pitchy, the color of pitch. 



Pilose. — Having long, sparse hairs. 



Plantula. — A cushion-like ])ad between the tarsal hooks or ungues; 

 same as pulvillus. 



Phimheons. — Pale, blue gray, like lead. 



Pronotum. — The shield which covers the front part of the thorax. 



Prosternum. — The under surface of the thorax. 



Prosternal spine. — A spine projecting from the under side of the pro- 

 thorax. 



Prothorax. — The anterior division of the' thorax to which the iK-ad 

 is joined. 



Pro.vimal. — Nearest; o])posite of distal. 



Prozona. — The front dorsal part of the pronotum. 



Pubescent. — Covered with soft, short and not crowded hair, wool or 

 down. 



Punctate, punctured. — Containing numerous small, point-like depres- 

 sions or punctures. 



Pupa, pupal. — -The third stage of an insect; the stage before the 

 imago. 



Puh'ilhis, pulvilli. — The little pads between the claws of the tarsi. 



Pyriform. — Pear-shaped. 



