mesothorax

/mez-uh-thawr-aks, -thohr-, mes-, mee-zuh-, -suh-/US // ˌmɛz əˈθɔr æks, -ˈθoʊr-, ˌmɛs-, ˌmi zə-, -sə- //UK // (ˌmɛsəʊˈθɔːræks) //

中胸,间胸,中胸部,中气层

Definitions

n.名词 noun

1
plural mes·o·tho·rax·es, mes·o·tho·ra·ces [mez-uh-thawr-uh-seez, -thohr-, mes-, mee-zuh-, -suh-]. /ˌmɛz əˈθɔr əˌsiz, -ˈθoʊr-, ˌmɛs-, ˌmi zə-, -sə-/.
- : the middle segment of the three divisions of the thorax of an insect, bearing the second pair of legs and the first pair of wings.

The 17 prothorax, mesothorax, and metathorax bear spines varying in number.
In Coleoptera it consists of a tense elastic membrane, which is quite covered by the Mesothorax.
This term may be applied to the Mesothorax in heteropterous Hemiptera, in which that part lies buried under the Prothorax.
These beetles, when irritated, make a squeaking chirrup by rubbing together the prothorax and mesothorax.
The mesothorax is triangular, with the apex posteriorly, and bears the greatly atrophied first pair of wings.