
the last segment of the thorax, after the metathorax.
Found on
http://en.wikipedia.org/wiki/Glossary_of_entomology_terms

The mesothorax is the middle of the three segments in the thorax of an insect, and bears the second pair of legs. Its principal sclerites (exoskeletal plates) are the mesonotum (dorsal), the mesosternum (ventral), and the mesopleuron (lateral) on each side. The mesothorax is the segment that bears the forewings in all winged insects, though someti...
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http://en.wikipedia.org/wiki/Mesothorax

• (n.) The middle segment of the thorax in insects. See Illust. of Coleoptera.
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http://thinkexist.com/dictionary/meaning/mesothorax/

(from the article `lepidopteran`) ...segments, the prothorax, mesothorax, and metathorax, each derived from a primitive segment. The prothorax bears the first pair of legs and a pair ...
Found on
http://www.britannica.com/eb/a-z/m/77

The 2nd segment of the thorax.
Found on
http://www.earthlife.net/insects/glossary.html

the second (middle) segment of the thorax from the head, abbreviated as T2.
Found on
http://www.encyclo.co.uk/local/22036

The middle section of the thorax of an insect that bears the top wings and the middle pair of legs.
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http://www.encyclo.co.uk/visitor-contributions.php
Mes`o·tho'rax noun [
Meso- +
thorax : confer French
mésothorax .]
(Zoology) The middle segment of the thorax in insects. See
Illust. of
Coleoptera .
Found on
http://www.encyclo.co.uk/webster/M/53

The 2nd segment of the thorax.
Found on
http://www.geog.ubc.ca/biodiversity/efauna/InsectGlossary.html

In entomology, the mesothorax is the middle rising of the thorax.
Found on
http://www.probertencyclopaedia.com/browse/BM.HTM

second or middle segment of the thorax bearing the second or middle pair of legs and the anterior or first pair of wings
Found on
https://www.encyclo.co.uk/local/22343

the second or middle thoracic segment which bears the middle legs and the anterior wings. See mesothorax and prothorax.
Found on
https://www.encyclo.co.uk/local/22345

the second segment of the thorax
Found on
https://www.encyclo.co.uk/local/22346

the middle segment of the three segments of the thorax of an insect
Found on
https://www.encyclo.co.uk/local/22348
No exact match found.