metathorax


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metathorax

[¦med·ə′thȯr‚aks]
(invertebrate zoology)
Posterior segment of the thorax in insects.
References in periodicals archive ?
Medial area of thorax with a pair of setae on each mesothorax and metathorax segment.
chiruanus is characterized by the long and slender stalk between pronotum and metathorax + propodeum and by the temple being crossed by a sharp carina.
Flea bodies have three major parts: head (triangular in shape with club-shaped antennae and downward pointed mouthparts), thorax (contains three pairs of legs and has three distinct segments called the prothorax, mesothorax, and metathorax), and abdomen (contains 10 segments in adults with the caudal segment containing a dorsal sensilium that detects vibrations and temperature changes for host detection).
Thorax: Dorsally white; patagium and tegula white, a few specimens with tegula grey and metathorax dorsally grey.
The suture between the metathorax and the first abdominal segment is marked by a carinae with a medial tubercle and two smooth lateral spaces and then some irregular tubercles.
Thoracic appendages (Table I) lacked natatory sensilla but bore short ventral spinulae (combs) on tibiae of the meso- and metathorax and all tarsi.
We also reassess a previous hypothesis (Soto-Adames 2002) about the homology of setae on the metathorax and 1st abdominal segment of Metasinella based on the evaluation of the new species from Nevis.
Thorax: Prothorax slightly narrower and longer than meso- and metathorax. Prothoracic plate occupying most of dorsum.
This clade is diagnosed by the distinct lateral intersegmental suture between meso- and metathorax, a reversal also found in Rhagadotarsinae + Trepobatinae (Damgaard, 2008b).
The mites infested most body parts, but seemed to prefer the meso- and metathorax, with many workers having mites symmetrically positioned on either side of the thorax.
Head, thorax, and legs covered with long dark brown hair; colour of vestiture between metathorax and first abdominal segment orange, rest of abdomen on dorsal side dark brown with intersegmental tufts of orange hair, ventral half completely dark brown.