Radial area: in Orthoptera; the space between the mediastinal ( subcosta) and radial veins: see scapular area. Radial cells: the wing area between the radius and media; often divided: in the plural (Comst.), are those cells anteriorly margined by the radius or its branches. Radial cross vein: (Comst.), is that which divides cell, radius 1. Radial sector: in general, the lower of the two primary divisions of the radius (Comst.): in Odonata, an indirect branch from the media, just below and parallel with media 2. Radial vein: in Homoptera, the first important vein next the costa between it and ulnar: in Orthoptera, = radius (Comst.): in Diptera, = 2d longitudinal vein (Meigen), = radius 2 (Comst.). Radiate veins: the longitudinal veins spreading fan-like in the anal field of secondaries: = anal veins; q.v. Radiated: marked with lines proceeding from a common centre. Radicle or Radicula: that joint of the antenna that is articulated to the head. Radio-medial cross vein: connects the radial and medial systems and usually closes the radial cell (Comst.). Radius: (Comst.); the third of the longitudinal veins starting from base and dividing into not more than five branches before reaching the margin: the branches are numbered 1, 2, 3, 4, and 5, respectively, beginning at the costal margin and extending outward and downward. Radix: base of wings, and their point of insertion; see pteropega. Rami -us: branches: a branch. Ramification: the branching out in every direction. Ramify: to branch out in every direction. Rammel-kammer: = copulation chamber; q.v. Ramose -ous: branched, or having long branches. Rapacious: predatory; capturing and eating prey. Raptatory: = raptorial; q.v. Raptoria: applied to that series of Orthoptera, in which the anterior legs are fitted for grasping; Mantidae {Scanner's comment: No longer Orthoptera, but Mantodea, a suborder of the Dictyoptera.} Raptorial: formed for seizing prey. Rare: seldom seen or found. Rasorial: formed for scratching; applied to leg structures. Ravenous: greedy; voracious; hungrily. Receptaculum seminis: a sac or pouch-like appendage at the junction of the oviducts with the vagina; it is filled during copulation and the eggs are fertilized from it as they are extruded. Reclinate: directed backward; e.g. the bristles in Diptera. Reclinatus: = reflexed; q.v. Reclivate: curved into a convex, then into a concave line. Recondite: the sting when concealed in the abdomen. Rectal cauda: the terminal, tubular process or tail terminating the abdomen of some male Hemiptera. Rectal glands: appendages to or thickenings of the rectum secreting a lubricating material. Rectal tracheal gills: lamelliform structures in the rectum of the nymphs of some Odonata, supplied with trachea and tracheoles and serving as respiratory organs. Rectangular: in the form of a right or rectangle. Rectangulate: forming or meeting in a right angle.