mesothorax

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mesothorax

(mĕz′ə-thôr′ăks′, mĕs′-)
n. pl. meso·thoraxes or meso·thoraces (-thôr′ə-sēz′)
The middle of the three divisions of the thorax of an insect, bearing the middle pair of legs and the first pair of wings.

mes′o·tho·rac′ic (-thə-răs′ĭk) adj.

mesothorax

the middle of the three thoracic segments of insects.
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References in periodicals archive ?
Mesonotum parallel-sided, as long as mesofemora, median and lateral longitudinal carinae distinct, posterolateral margins elevated.
Mesonotum almost as long as vertex plus pronotum, median carina becoming obsolete at apex, lateral carinae inconspicuous, slightly divergent posteriorly, not reaching posterior margin (Fig.
The pronotum, dorsum of the mesonotum, and dorsum of the propodeum are coarsely foveolate and rough.
4) Mesonotum, metanotum and 1st abdominal segment somewhat inflated.
Color Body pale dull yellowish (possibly greenish in life; Muir 1931) with reddish mid-dorsal red to brown stripe following median carinae of coryphe and pronotum, weaker on midline mesonotum and commissural margin of forewings.
The mesonotum spines are regular and smooth; also the frontal carinas in the head are short and never go beyond the eyes.
Male total length 2.05, forewing length 1.63, crown length at middle 0.19, crown width across eyes 0.62, interocular width at anterior 0.44, eyes length in cross 0.27, pronotum width 0.59, pronotum length 0.33, mesonotum length 0.06, scutellum length 0.16.
Thorax: Pronotum uniformly shaded with black, except two small yellowish marks on anterior region; mesonotum yellowish, shaded with black; mesoscutellum brownish with black marks, lateral regions yellowish, plumidium absent; metanotum yellowish shaded with black; pleural and stemal sclerites whitish.
Scutellum: triangular area of the mesonotum, situated posterior to the pronotum and between the bases of the elytra; it may be covered by the posterior margin of the pronotum resulting in a not exposed scutellum.
Thorax -- Pronotum trapezoidal, widest at posterior margin, bearing widely dispersed sensilla on margins and shorter sensilla widely distributed discally, two obscure sternites, each posterior to a series of four small setae; meso- and metanota subequal in length; spiraclein pleural region of mesonotum near each anterolateral margin of tergite.