Mesosoma

The mesosoma is the middle part of the body, or tagma, of arthropods whose body is composed of three parts, the other two being the prosoma and the metasoma. It bears the legs, and, in the case of winged insects, the wings. In Apocrita Hymenoptera (wasps, bees and ants), it consists of the three thoracic segments and the first abdominal segment (t...
Found on http://en.wikipedia.org/wiki/Mesosoma

mesosoma

(from the article `arachnid`) There are many modifications of the cephalothorax and abdomen. Among the scorpions the abdomen is subdivided into the mesosoma, or preabdomen, and ... The mesosoma has seven segments. The first (pregenital) segment is reduced and bears the sternum, while the second (genital) bears the ventral ... [2 rela...
Found on http://www.britannica.com/eb/a-z/m/77

mesosoma

the "body" of the scorpion, comprising the first seven of the opisthosomal (abdominal) segments. A given mesosomal segment is provided dorsally with a tergite and ventrally with the genital opercula (1st mesosomal segment), pectines (2nd mesosomal segment), or sternite (segments III-VII). The tergites and sternites are joined together by softer c...
Found on http://www.vaejovidae.com/Glossary.htm

Mesosoma

the body. Part of the Abdomen, has seven separate segments.
Found on http://www.venomlist.com/forums/index.php?showtopic=472
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