‖ mesothorax Ent.
(mɛsəʊˈθɔəræks)
[mod.L., f. meso- + thorax.]
The middle ring or segment of the thorax of insects.
| 1826 Kirby & Sp. Entomol. xxxiii. III. 371. 1833 G. R. Gray Entom. Australia i. 18 The mesothorax [of Trigonoderus Childrenii] is somewhat triangular in form, and keeled down the centre. 1870 Rolleston Anim. Life 77 The dorsal part of the mesothorax. |
Hence mesothoracic (-θəˈræsɪk) a., pertaining to the mesothorax.
| 1839 Westwood Mod. Classif. Insects I. 17 The mesothoracic and metathoracic segments. 1878 Riley in Amer. Nat. XII. 215 The first pair of spiracles are distinctly mesothoracic and dorsal in the triungulin. |