metathorax

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metathorax

(mĕt′ə-thôr′ăks′)
n. pl. meta·thoraxes or meta·thoraces (-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.

metathorax

the posterior of the three thoracic segments in insects, bearing the third pair of jointed legs and the hind pair of wings.
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Mesoscutum, mesoscutellum, and metanotum with fine, contiguous punctures or aveoli (Fig.
Metanotum produced posteromedially into triangular lobe overlapping the anterior propodeum (Fig.
Coloracion amarillo tenue, excepto el escutum, escutelo, axila, tegula, panel lateral del metanotum y frenum, los cuales son de color cafe tenue.
Gibson (1972) subdivided the genus into five subgenera according to the kind of vein 3RSb (tubular or spectral), shape of lower face (rounded or flat) and ocellar triangle (raised or not raised into pyramidal projection), and level of scutellum in reference to metanotum (at same level or medially at higher level).
Receptive females mount males and feed on secretions from a gland on the males' metanotum for a short period (5 sec to 5 min) before copulation and an extended period (30 sec to 30 min) after copulation (Bell 1979; Brown 1994).
33) Thorax hemispherical, metanotum surpassed by scutellum (1); metanotum not surpassed by scutellum (0).
Thoracic coloration: mesonotum and metanotum brown, pronotum and post-notum light brown, paratergite and pleura pale but pale brown at the base of the katepimeron, katepisternum and coxae.
Plate V: Features around the ocellar triangle and the metanotum 10a.
1A): Slightly elongated body; triangular light browned head with broad tylus, surpassing the juga and with four dark browned spines in the apex; small yellowish-browned pale eyes; ocelli absent; paled yellow four segmented rostrum surpassing the metacoxae; antennae with four segments, number I being smaller than segments II and III, and segment number IV fusiform, all of them with light browned coloration, except IV paled yellow; pale browned thorax; pronotum larger than the mesonotum and metanotum; yellowish paled femora, tibiae, senescent glands and also the abdomen dorsally and ventrally.