Definitions For Glossary Terms
- TARSAL CLAWS
- Paired hooked (claw-like) structures projecting from the apex of the last tarsal segment on either side of the arolium of the pretarsus.
- TARSAL COMB See basitarsal comb
- TARSAL SEGMENT
- One segment of the tarsus. [drawing]
- TARSOMERE See tarsal segment
- TARSUS
- Fifth segment of a leg that basally articulates to the tibia and normally consists of three to five
subsegments. [drawing]
- TEGULA
- Small, typically oval sclerite that covers the region of the mesothorax
where the forewing and thorax articulate through the axillary sclerites. [drawing][photo]
- TEMPLE
- Region on the top of the head behind each eye
(see also vertex and gena). [drawing][photo]
- TENTORIAL ARMS
- Paired cuticular invaginations within the head that form part of the tentorium, which often are externally visible
on the front of the head below the toruli as the anterior tentorial pits and on the back of the head near the
occipital foramen as the posterior tentorial pits.
- TENTORIUM
- Internal, usually more or less H-like endoskeleton of the head that serves
as a site for muscle attachment and that braces the head.
- TERGITE
- A dorsal sclerite of any segment of the thorax or abdomen when it consists
of a single sclerite, often used synonymously with tergum (see also notum). [drawing]
- TERGUM
- (pl., terga) The upper or dorsal surface of any segment of the thorax or abdomen, whether consisting of one or more
sclerites (see also tergite and notum). [drawing]
- TERMINAL PROCESS OF
STIGMAL VEIN
- Term sometimes used for that portion of the stigmal vein that extends beyond the uncus.
- TERMINAL SPINE
- Needle-like projection from the apex of the clava; sometimes called the spicula. [photo]
- THIRD AXILLARY SCLERITE
- One of three axillary sclerites
of the forewing; typically an elongate twisted sclerite that articulates
distally with the remnants of the anal vein and ventrally with the dorsal margin
of the second axillary
sclerite. [photo]
- THIRD VALVULAE
See ovipositor sheaths
- THORAX
- (pl., thoraces) The middle of the three main body regions of an
insect composed of the prothorax, mesothorax and metathorax; which bear the legs and normally
two pairs of wings, sometimes used as synonym of mesosoma. [drawing]
- TIBIA
- Fourth segment of a leg that articulates basally with the femur and apically with the tarsus. [drawing]
- TIBIAL COMB See protibial comb
- TIBIAL SPUR
- One or two longer and sometimes otherwise modified, articulated spines at or
near the ventroapical margin of a tibia; the protibia and mesotibia each have a
single spur and the metatibia has one or two spurs (see also calcar). [drawing][photo]
- TORULUS
- (pl., toruli) Socket on the head in which the antenna articulates. [drawing][photo]
- TRABECULA
- (pl., trabeculae) In Mymaridae, term used for an H-like pattern of
lines on the face and vertex, which consists of a transverse line on the
upper face that connects with lines along
the upper and inner margins of each eye; the lines are usually darker than the
surrounding cuticle because they are thickened regions resulting from inrolled
cuticle. [photo]
- TRANSCUTELLAR SULCUS/SUTURE
See
frenal line/sulcus/carina
- TRANSEPIMERAL SULCUS
- Typically a partly transverse groove or line on the mesepimeron that differentiates an upper
mesepimeron and lower mesepimeron; when present it is often arched
posterodorsally from near the mesocoxa, in which case it can also delimit a trochantinal lobe anterior to the
mesocoxa, or it extends diagonally or transversely from the mesopleural suture, but it is quite
varied and sometimes is reduced to a single pit. [drawing][photo][photo][photo]
- TRANSEPISTERNAL LINE/SULCUS
- A line of lighter color, change of sculpture, or more distinct groove on the
mesepisternum that extends from the
anterolateral corner of the mesocoxa toward the procoxa and, when present,
divides the mesepisternum into an upper mesepisternum and lower mesepisternum
(see also sternopleural suture).
[drawing][photo][photo]
- TRANSOCCIPITAL SUTURE
- In Mymaridae, a transverse groove extending entirely across the head between
the eyes behind the vertexal sulcus.
[photo][photo]
- TRANSSCUTAL ARTICULATION
- Usually a more or less transverse line of weakness across the mesonotum at the level of the forewings that
differentiates an anterior mesoscutum and posterior scutellar-axillar complex,
and that permits flexion of the mesonotum for flight; often called the
transscutal sulcus or suture. [drawing][photo]
- TRANSVERSE
- Broader than long, or at a right angle to the longitudinal axis.
- TRANSVERSE SUTURE
- In Mymaridae, a horizontal suture between the eyes above the toruli that
forms the ventral margin of the transverse trabecula and dorsal margin of the face. [photo][photo]
- TRANSVERSE TRABECULA
- In Mymaridae, the horizontal band of thickened, often darker cuticle on the
head that extends between each eye below the anterior ocellus and above the
toruli, which laterally terminates at the juncture of the supraorbital trabecula and preorbital trabecula (see also transverse suture). [photo]
- TRAPEZOIDAL
- A four sided shape in which two of the sides are parallel and two are not.
- TRICHOID SENSILLUM
See seta
- TROCHANTELLUS
- Basally delineated region of the femur that
often looks like a separate segment similar to the trochanter. [drawing]
- TROCHANTER
- Second segment of a leg that articulates basally with the coxa and apically with the femur. [drawing][photo]
- TROCHANTINAL LOBE
- Term sometimes used (especially Eulophidae) for a slender region along the
extreme posterior margin of the mesepisternum anterior to each mesocoxa,
and not homologous with mesotrochantinal lobe as used in Eupelmidae. [photo]
- TRUNCATE
- Cut off squarely, i.e. with the apical, transverse margin straight (compare
with emarginate).