1376 INDIANA COLEOPTERA. 



Obscure. Not readily seeii; not well defined. 

 Obsolete. Nearly or entirely lost; inconspicuous. - 



Obtuse. Not pointed : an angle greater than a right angle: opposed to acute. 

 orri/ntt. That part of the head behind the vertex. 

 Ocellus. A simple eye, consisting of a single convex or bead-like lens. 

 Omnivorous. A general feeder upon animal or vegetable food, nr both. 

 Opaque. Without lustre; not transparent. 

 Orbicular. Round and flat. 



onler wart/in. The outer edge of wing, between apex and hind angle. 

 Oripositor. The tubular or valved structure by means of which the egg< 

 are placed; usually concealed. 



Palpi. Plural of palpus. 



Palpus. A mouth feeler; tactile, usually jointed structures borne by the 

 maxilla? (maxillary palpi) and labium (labial palpi . 



Pectinate. Comb-shaped; with even branches like the teeth of a comb. 



Penultimate. Next to the last. 



I'erfoHate. Divided into leaf-like plates; applied to antenna 3 with disk-like 

 expansions connected by a stalk passing nearly through their centers. 



Perp<-inlicular. Upright; at right angles to horizontal. 



Persistent. Remaining constantly; always present. 



Phosphorescent. Shining or glowing in the dark, like phosphorus. 



Piceous. Pitchy black. 



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



Plane. Level, flat; applied to a surface. 



Plicate. Plaited ; folded like a fan. 



I'luri. I'scd as a prefix, means many. 



Pol it. Many, much. 



Pore. Any small, round opening on the surface. 



Posterior. Hinder or hindmost: opposed to anterior. 



P re-apical. Before the apex. 



I'ri'ilacroiis. Applied to insects that live by preying upon other organisms. 



PreJiension. Structures fitted for grasping or holding. 



Process. A prolongation of the surface, margin nr an appendage. 



ProiJncetl. Drawn out; prolonged; extended from. 



ProloiHjcil. Extended or lengthened beyond ordinary limits. 



Prominent.- Raised or produced beyond the level or margin : standing out 

 in relief by color or otherwise; conspicuous. 



Pronotum. The upper or dorsal surface of thorax. 



Propyc/idiiim. The dorsal segment or tergite in front of the pygidimn. some- 

 times left exposed in Coleoptera. 



I'rostcrnal. Belonging to the prosternum. 



Prostcrnnl grooves. Occur laterally in some beetles to receive the anteni:.-e. 



Prosternril lobe. In some Coleoptera an anterior prolongation of the pro- 

 sternum which more or less conceals the mouth from below. 



Pro*t<-r>i<il *pine. The curved spine which extends backward into a mesn- 

 sternal cavity. 



Prostcriinl suture. That suture of prothorax which separates the sternum 

 from the pleural pieces. 



Profileniinn. The fore-breast: the sclerite between the fore legs. 



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