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Related to mesothorax: mesothoracic


 (mĕz′ə-thôr′ăks′, mĕs′-)
n. pl. mes·o·tho·rax·es or mes·o·tho·ra·ces (-thôr′ə-sēz′)
The middle of the three divisions of the thorax of an insect, bearing the middle pair of legs and the first pair of wings.

mes′o·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 middle segment of the thorax of an insect, bearing the second pair of walking legs and the first pair of wings. See also prothorax, metathorax
mesothoracic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌmɛz əˈθɔr æks, -ˈθoʊr-, ˌmɛs-, ˌmi zə-, -sə-)

n., pl. -tho•rax•es, -tho•ra•ces (-ˈθɔr əˌsiz, -ˈθoʊr-)
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.
mes`o•tho•rac′ic (-θɔˈræs ɪk) 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 ?
The body of adults is green in color, has a dark brown stripe on the side of the body from the head to the mesothorax, their wings are brownish (female) to green (male), with dark brown side edges, and orange antennae (Figure 1).
Thoracic and Cervical MRI reveal a substantial cystic mass (12,5 x 2,2 x 2,3 cm) in anterior mesothorax. Two similar masses were detected one paratracheal (2,6 x 4 cm) and one in the lower cervix (2,4 x 2 cm), all communicating.
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.
Live specimens predominantly olivaceous, densely spotted in pale yellow or light brown, with a pale yellow dorsomedian line extending along head, pro- and mesothorax; body ventrally light-colored, with a dark median line extending along the body except sub-genital plate; tegmina and costal region of hind wing dark olive or brownish green with venation vivid light green.
The pronotum in Coleoptera are greatly enlarged found between the head and mesothorax [4].
Collar segment with two very large papillae without setae in dorsal region; dorsal sclerotized plate occupying pro and mesothorax with a row of setae on superior margin; pleural papillae very well developed and one spiracle each side of the plate (Figure 12).
Margin of prothorax ocher with a white spot dorsally on mesothorax, and a conspicuous black spot dorsally on A4 to A5 abdominal segment.
Mesothorax (T2) consisting of three well delineated subsegments separated by distinct depressions.
Mature (third instar) agabine larvae have spiracles on pleural regions of the mesothorax and abdominal segments 1-7 and head lengths of 1.6-2.4 mm.
No humeral bristles and, associated with the rearward extension of the mesothorax, most posterior of 3 bristles on each notopleuron well behind other two bristles.