mesosoma


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mesosoma

[¦me·zō′sō·mə]
(invertebrate zoology)
The anterior portion of the abdomen in certain arthropods.
The middle of the body of some invertebrates, especially when the phylogenetic segmentation pattern cannot be determined.
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Notum of mesosoma with distinct reticulate cells and irregular sculpture in these cells; mid-lobe of mesoscutum with transverse reticulate cells anteriorly and longitudinal or oblique reticulated cells posteriorly, with 1 pair of setae; each side-lobe of mesoscutum with 2 setae; each axilla with 1 seta, distance between axillae about 2.
Head black to medium brown, mesosoma blackish brown to medium brown, metasoma medium to light brown; A1-A4 (sometimes only A1-A2) and mandibles yellowish brown, legs including coxae pale yellowish brown; A5-A10 medium to dark brown.
The species can be differentiated from other members of the genera by having dark black scape, T1 broadly attached to mesosoma, tooth shaped structure present at distal end of hind femur, marginal vein of fore wing slightly away from wing margin and post marginal vein short.
Brachistosternus andinus Macho Hembra Longitud total 41,6 46,7 Caparax, largo 5,4 6,5 ancho anterior / posterior 3,9 / 5,6 4,6 / 7,2 Mesosoma, largo 10,4 12,3 Metasoma, largo 25,8 27,9 Seg.
The appendages (PC, PA, DL, PL, Ch in Figures 1-6) and metasoma (M345, M2, M1 in Figures 1-6) tend to separate from the rest of the body before the mesosoma disarticulates (TMS in Figures 1-6).
El analisis morfometrico se hizo a partir de fotografias del primer tergum metasomal en vista dorsal, el pronotum en vista dorsal, y el mesosoma en vista lateral; se marcaron ocho puntos de referencia sobre el tergum, ocho sobre el pronotum y 15 sobre el mesosoma (Figura 2).
Cotesia dictyoplocae belongs to the glomeratus-subgroup of the genus Cotesia and is characterized by the following features: outer side of hind coxa glossy with fine and disperse punctations; mesonotum punctate, notauli absent; scutellum smooth; antennae about as long as body; first tergite broadening posteriorly; head, mesosoma, and metasoma black; legs reddish yellow except: coxae black, hind femora at extreme apices, apical third of tibia, and tarsi dark brown.
Diagnosis: A most characteristic species on account of slender body with mesosoma twice as long as wide and female metasoma 1.