Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

898Maggenti and Gardnertentorial pits (ARTHRO: Insecta) External depressions on thesurface of the head marking points of union of the armswith the outer wall of the head; usually two in the epistomalsuture and one at the lower end of each postoccipitalsuture.tentorium n.; pl. -oria [L. tentorium, tent] (ARTHRO: Insecta)Two anterior and two posterior apodemes (arms) that formthe internal skeleton of the head, serving as a brace for thehead and for the attachment of muscles; in Culicidae, theright and left halves are not connected.tenuous a. [L. tenuis, thin] Thin, slender, delicate.teratocyte n. [Gr. teras, monster; kytos, container] (ARTHRO:Insecta) In Lepidoptera Pieridae, unicellular forms resultingfrom the embryonic membranes of parasitic Braconidae.teratogen n. [Gr. teras, monster; genes, producing] Any substancethat causes or increases the incidence of congenitalabnormalities in a population.teratogenesis n. [Gr. teras, monster; genesis, beginning] Theproduction of monstrous fetuses or growths.teratogyne n. [Gr. teras, monster; gyne, woman] (ARTHRO:Insecta) In Hymenoptera, the aberrant form of female in aFormicidae colony, characterized by overdeveloped legsand antennae, and excess pilosity of the body or defectivewings; formerly referred to as beta-females. see alphafemale.teratology n. [Gr. teras, monster; logos, discourse] The biologicalstudy of structural malformations and monstrosities.terebella see terebraterebra n.; pl. -bras, -brae [L. terebra, borer] 1. A borer orpiercer. 2. (ARTHRO: Insecta) a. In Hymenoptera, thestylets and stylet-sheath. b. In Odonata and Hymenoptera,the gonapophyses of segments 8 and 9. 3. (MOLL) a. In Bivalvia,the anterior margin of the valve. b. In carnivorousGastropoda, the radula. terebrant, terebrate a.teres n. [L. teres, rounded] Nearly cylindrical. terete a.terga pl. tergumtergal a. [L. tergum, back] Situated on the back.