Teres, Terete: cylindric or nearly so. Tergal: belonging to the primitively upper surface: see dorsal. Tergal suture: the Y shaped dorsal suture on the head of many insect larvae. Tergite: the primitively dorsal part of a segment, especially when that part consists of a single sclerite; usually applied to the abdomen. Tergo-pleural: the upper and lateral portion of a segment. Tergo-rhabdites: the lower pair of corneous appendages forming the ovipositor in grasshoppers: plates on the inner dorsal surface of the abdominal wall. Tergum: the primitively upperor dorsal surface whether it consists of one or more than one sclerite and specifically of the abdomen: in Odonata and Orthoptera, applies to thorax as well. Termen: the outer margin of a wing, between apex and hind or anal angle. Terminal: situated at the tip or extremity; opposed to basal. Terminal line: in Lepidoptera, runs along the outer margin of the wings. Terminal space: the area between the s. t. line and terminal line in certain Lepidoptera. Terminology: the technical nomenclature of any science. Termitarium: a nest, natural or artificial, or a colony of Termites. Terrestrial: living on or in the land; opposed to aquatic. Tessellated: checkered; more or less like a chess-board. {Scanner's comment: More correctly, it means "tiled", covered with possibly regularly shaped areas or pieces. They may or may not be square or otherwise regular.} Test: the secretionary covering of Coccidae, and especially such as are waxy, horny or glassy. Testaceous: dull yellow brown; tile colored [pale cadmium yellow+burnt sienna]. Testes: the tubular structures in the male, in which the production of spermatogonia, and often also of later stages in the development of the sperm takes place. Testicular follicles: in the larva, are those structures which in the adult form the tubes composing the testes; in the adult applied also to the tubes forming the testes. Testudinate -us: resembling the shell of a tortoise. Tetra-: four: a combining form. Tetrachaetae: applied to those Diptera in which the mouth structures consist of four longitudinal blades or piercing structures. Tetradactyle: with four fingers or finger-like processes. Tetragonal: having four sides or angles: quadrangular. Tetramera: applied to Coleoptera with four-jointed tarsi. Tetramerous: having four-jointed tarsi. Tetrapoda: applied to those butterflies in which the anterior legs are atrophied in whole or in part. Tetraptera: a term proposed for all insects with four naked, membranous reticulated wings. Thamnophilous: applied to species living in thickets or dense shrubbery. Theca: a case or covering: specifically applied to the fleshy covering of the fly-mouth; to the cases of the Trichopterous larvae; to the lower piece of the male genitalia in Homoptera; and to the outer covering of the pupa. Thelyotoky: parthenogenetic reproduction when the progeny are all females see Arrhenotoly and Deuterotoky.