Tortulose-us: hump-backed; a surface with a few large elevations: beaded; moniliform.
Tortuose -us: irregularly curved and bent; snake-like.
Tortuous: = Tortuose.
Torulus: the basal socket joint of the antenna upon which the organ is articulated for movement in all directions.
Totidem: in all parts; entirely.
T.P. line: transverse posterior line; crossing the primaries of certain Lepidoptera, two-thirds or more from base: = post medial line.
Trabecula: rounded, lobular masses of the procerebrum, from which arise the stalks bearing the mushroom bodies: a paired movable appendage in front of the antennae in certain bird-lice.
Trachea -ae: the spirally ringed breathing tube or tubes of insects.
Tracheal gills: the flattened or hair-like processes in aquatic larvae through which oxygen is absorbed from the water.
Tracheary: relating to or composed of tracheae.