mesothorax


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Related to mesothorax: mesothoracic

mesothorax

[¦me·zō′thȯ‚raks]
(invertebrate zoology)
The middle of three somites composing the thorax in insects.
References in periodicals archive ?
Thorax brown, being darkest on top, and front spiracles and mesothorax as in Ph.
Mesothorax nearly as long as anterior lobe of pronotum, globular, mesonotum laterally with conspicuous longitudinal carinae leading to base of each forewing, midline sulcate, subapically with paired lateral depressions.
Mesothorax bandlike with several rows of denticles close together, with 5 pairs of lateral setae and 2 pairs of medial setae, (Figs.
Thorax: Most anterior region of pronotum with eight holes; scutum with well-defined median furrow, scutum, scutellum and metanotum with dense punctures, PIS < PD, sides of mesothorax alutaceous, sides of metathorax sparsely punctate and polished; propodeal dorsum with median carina that extends near to dorsum apex, rugae on dorsum somewhat reticulate; propodeum without lateral carina, dorsolateral and posterolateral areas with coarse, transverse, short carinae; sides ofpropodeum alutaceous, with sparse and minute punctures; posterior sides of propodeum with narrow, deep median furrow, sides of furrow with somewhat sinuate rugae.
Of the 3 pairs on cephalothorax, 1 pair each on laterad of cephalic, pro-, and mesothorax.
Mesothorax, metathorax and abdominal tergites I-VII with transverse rows of longitudinally elongate dermal plaques without microtrichia.
Fourteen morphological traits of10 specimens from each region were quantified by measuring the lengths of the body, antennae, head, prothorax, mesothorax, metathorax, ovipositor, forewing and hind wing; and the widths of the head, abdomen, prothorax, mesothorax, and metathorax (Table 2) using an automontage advanced photography software program (Auto-Montage Pro software, version 5.
Ventrally the head and prothorax are pale orange with following areas black: posterior area of gula, and a long macula on propleura; rostral segments ochraceous with most of segment IV black; mesothorax dark orange with a fine whitish cerumen, acetabula ochraceous and mesosternum black; metathorax dark orange with a fine whitish cerumen, acetabula and posterior margin whitish yellow; posterior margin of metathorax with a middle rectangular pale brown macula; coxae brownish orange with apex yellow; trocanter, tarsi and femora bright yellow; femora with a brown orange subapical ring; sternites brownish orange with brownish scattered areas.