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n. pl. met·a·tho·rax·es or met·a·tho·ra·ces (-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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -raxes or -races (-rəˌsiːz)
(Zoology) the third and last segment of an insect's thorax, which bears the third pair of walking legs and the second pair of wings. See also prothorax, mesothorax
metathoracic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌmɛt əˈθɔr æks, -ˈθoʊr-)

n., pl. -tho•rax•es, -tho•ra•ces (-ˈθɔr əˌsiz, -ˈθoʊr-)
the posterior division of the thorax of an insect, bearing the third pair of legs and the second pair of wings.
met`a•tho•rac′ic (-θɔˈræs ɪk, -θoʊ-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
One pair of setae each on mesothorax and metathorax and one pair of small setae (4-6 [micro]m) on abdominal segment VIII, which arises from a tubercular area anterior to the margin of the vasiform orifice (Fig.
Elytra orange-yellow with two black spots on the metathorax on either side near elytral base (Fig.
Most of the leafhopper are of green color firing at the yellow, The distinction is bases on the very clear white points on the head, the pronotum and the metathorax, as well as a vein particularity (one of the 3 apical vein of the elytron come from an apical cell and the other two veins come from median cell).
viridis exhibits (at least in the last four instars), a gleaming white dorsal stripe from the occiput toward or reaching the base of the supra-anal plate, various white lines and maculations on the margins and lateral fields of the of the pronotum, white diagonal bands on the meso- and metathorax, and white longitudinal carinae on the face of the hind femora (Fig.
Metathorax (T3) consisting of three well delineated subsegments separated by transverse depressions each with pair of transversely elongated sclerites (Sc2, Sc3) laterally.
Metathorax + propodeum dull, completely granulated, with posterior surface not transversely striate.
Third instar nymph: Head and abdomen whitish;brain area broader than first instar; teeth of mandibles pigmented; Meso and metathorax with distinct wing pads.
summary by Matsuda, 1970); also the posterior supracoxale is absent on the metathorax. The uniqueness of what we have called a "metepimeral process" and its contiguity with the area behind the anterior supracoxale suggests the real metepimeral nature of these structures.