Corium: the elongate middle section of the hemelytra which extends from base to membrane below the embolium. Cornea: the outer surface of the compound eye as a whole, and of each individual facet. Corneal lenses: are the individual lens-like structures of which the cornea of the compound eye is composed. Corneous: of a horny or chitinous substance; resembling horn in texture. Cornicles: the honey tubes in plant-lice: = corniculus. Corniculi: the little horny tips or pieces of the ovipositor in Orthoptera; see valves. Corniculus -i: = cornicles; honey-tubes; q.v. Corniform: like the horn of an ox: a long, mucronate or pointed process. Cornute -us: having horns or horn-like processes. Corona: a crown or crown-like processes. Coronate: with a crown-like tip or termination. Coronet: a small crown or corona. Coronula: a circle or semicircle of spines at the apex of the tibia. Corpus: the body as a whole. Corpus adiposum: the mass of fat tissue often found in larvae. Corpuscle: a small cell; usually applied to blood cells. Correlate: to bring together into relation or correspondence. Correlated: derived from the same ancestral form: said of two or more features or qualities which bear a direct or an inverse relation to each other, but without implying a relation of cause and effect. Correlative: of a correlated nature; see correlated. Corrode: to eat away gradually, as by rust or decay. Corrodentia: an ordinal term meaning gnawers: net-veined or wingless: mandibulate, mouth formed for gnawing; transformation incomplete; thorax incompletely agglutinated: = Psocoptera: includes Termitidae, Psocidae and Mallophaga. {Scanner's comment: These four groups are now placed in totally separate orders, and not families as these names imply} Corrugated: wrinkled; with alternate ridges and channels. Corselet: the thorax in Coleoptera. Cortical: relating to the cortex or outer skin. Corticinus: bark-like in sculpture, texture or color [vandyke brown]. Corvinus: crow-black; deep, shining black with a greenish lustre. Coryphatus: = capillatus. Corysterium: an abdominal glandular structure in certain females, secreting a glutinous covering for the eggs. Cosmopolitan: species that occur throughout most of the world. Cosmotropical: species that occur throughout the tropics. Costa: any elevated ridge that is rounded at its crest: the thickened anterior margin of any wing, but usually the primaries: in Comstock, the vein extending along the anterior margin of the wing from base to the point of junction with subcosta. Costal area: the area behind costal vein; see also, costal field. Costal cell: the area inclosed between the costal and sub-costal veins: in the plural, Comstock, are all the cells anteriorly margined by the costa; in Hymenoptera (Norton), includes the 1st, 2d and sub-costal; of Packard, the 3d costal = 2d radial 1, and radial 2: in Diptera (Will.), it is the 2d costal.