Tubulous -ose: formed like a tube: fistulous.

Tubulus: the slender, flexible abdominal segments forming the
ovipositor in Diptera.

Tubus: a term used to designate the corneous base of a ligula: the
sheath of the tongue.

Tumescence: a swelling or tumid enlargement: a puffed up area.

Tumescent: a little swollen or puffed up.

Tumid: swollen; enlarged; puffed up.

Tunica intima: the inner layer of the silk glands: an inner lining or
membrane.

Tunica propria: a layer of epithelial cells and connective tissue lining
the interior of the hind gut: the outer layer of the silk glands: a
covering or investing membrane.

Tunicate: composed of concentric layers, enveloping one another: said
of antennae when each successive joint is buried in the preceding
funnel-shaped one.

Turbinate: top-shaped; nearly conical: differs from pyriform in being
shorter and more suddenly attenuated at base: applied to an eye =
pillared eye; q.v.

Turgid: swollen.

Turritus: towering: a surface rising cone-like.

Tylo: = tylus; q.v.

Tylus: the anterior central lobe of the head in Hemiptera.

Tympana: the ears in Orthoptera.

Tympanal: applied to organs covered with a tympanum or stretched
membrane supposed to function as ears.

Tympanic spiracle: in Diptera, the thoracic spiracle at base of wing.

Tympanules: small openings covered by a membrane, having otoliths
and serving as ears.

Tympanum: any membrane stretched like the head of a drum:
specifically applied to the membrane covering the auditory organs in
Orthoptera.

Type: a unique or single specimen selected from a series and labelled
by the describer to represent his name and description: if male or
female be added to the label, the specimen typifies that sex, and in
case of an erroneous association the male type stands for the species
unless the author has specifically designated the other example as
representing the name: see also co-type; homotype; meta-type;
paratype; topotype.

Typical: the normal or usual form of a species; agreeing with the type
form.

U

Uliginous: muddy, or pertaining to mud.

Ulnar: in Homoptera, a wing vein between the radial vein and claval
suture; = cubitus: in Orthoptera, = cubitus; q.v.

Ulnar area: in Orthoptera, = median area; q.v.

Ulona: the thick, fleshy mouth parts of Orthoptera.

Ulonata: a Fabrician. term for Orthoptera, based on the character of
the mouth structures.

Ultimate: last or final: that larv