mesosoma


Also found in: Encyclopedia, Wikipedia.

mesosoma

Entomology
The middle segment of an insect’s body.

Medspeak
Having a medium height.
 
Microbiology
Mesosome, see there.
References in periodicals archive ?
Since all parts of its body such as pedipalps, dorsal surface of mesosoma, legs, lateral and ventral surfaces of metasomal segments, and vesicle densely are covered by hair, it is known as the hairy black scorpion.
The majors and minors are darker, bicolored, with the head and gaster dark brown, and the mesosoma and legs reddish brown.
Diagnosis: A small species with head distinctly wider than mesosoma, OOL = 1.
Mesosoma with light punctation, space between punctures more than size of punctures, each puncture with a hair; hind femur with small tooth at anterior side on single lobe, a tooth shaped structure present at the distal end of the femur, length of femur 2x its maximum width; tibia with 2 carinae at anterior end, with 2 apical spurs; marginal vein of fore wing slightly away from wing margin, postmarginal vein very short, stigmal vein short with distinct uncus.
The female of this species can be separated from other Central American species of Lestrimelitta by the following combination of characters: small body size (length about 5 mm); head and mesosoma practically glabrous, except for scattered hairs on preoccipital border and distal margin of mesoscutellum; mesotibia without erect hairs on outer surface; and mesotibial spur very reduced.
Coloracion y patron de pigmentacion: Color general amarillo castano, con manchas cafes oscuras; patas y parte ventral del prosoma y mesosoma amarillentas, peines blanquecinos.
This male appears to have a masculinized mesosoma and metasoma, but a feminized head.
Intact scorpion carcasses and exuvia were photographed, and the following exoskeletal characteristics were recorded for each specimen: 1) curvature of the mesosoma and metasoma; 2) presence or absence of telescoped mesosomal and metasomal segments; 3) position/orientation of the chelicerae; 4) position/orientation of the walking legs; and 5) position/orientation of the pedipalps.
They are bicolored with the head and mesosoma being dark brown to blackish brown and appendages, petiole, and gaster being milky white.