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n. pl. met·a·tho·rax·es or met·a·tho·ra·ces (-thôr′ə-sēz′)
The hindmost of the three divisions of the thorax of an insect, bearing the third pair of legs and the second pair of wings.

met′a·tho·rac′ic (-thə-răs′ĭk) adj.
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References in periodicals archive ?
Ventral tubular ducts (vtbd) present, with a slender inner ductile (terminal filament), similar in length to outer ductule, each tubular duct with a well-developed gland present on area around mesothoracic and metathoracic coxae.
The original interpretation of the metathoracic chaetotaxy by Soto-Adames (2002) indicated the absence of seta m2, a seta considered by Szeptycki (1979) to be diagnostic of Lepidocyrtini.
Number and distribution of prominent spiniform sensilla on pro- and metalegs as in Table III; sensillar distributions on metathoracic (Figures 2A, B) and mesothoracic legs are similar, only more numerous on former; complex sensilla, bearing unicellular processes present, more numerous ventrally and distally on femoral and tibial segments; posterior tarsal claws shorter than anterior claws.
Grass and leaf-cutting ants vary in behavior when cutting leaves, in part because grass cutting species tend to have shorter metathoracic legs than leaf-cutting species (Fowler et al.
It is characterized by the presence of a quadrate cell in the fore wing, the absence of the dorsal connexival suture, the reduction of the vermiform gland, and absence of the metathoracic scent glands (Weirauch, 2008).
Legs: Dark red-brown except for yellow-brown proximal region of metathoracic femora (Congo material with all tibiae and tarsi yellow-brown).
Mesothoracic episternum and epimeron, and metathoracic episternum, light yellow-green, forming a light patch contrasting with the rest of the head and thorax.
Anatomy, ultrastructure, and functional morphology of the metathoracic tracheal defense glands of the grasshopper Romalea guttata.
b) long, broad and compact metepisternum forming unusually large precoxale, (c) auricle of the metathoracic gland opening (Fig.
The male separated pieces of dung that the female reshaped, or that the male itself transformed into irregular balls, rotating them several times between his meso- and metathoracic legs.