prosternum


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Related to prosternum: Propleuron

prosternum

(prəʊˈstɜːnəm)
n, pl -na (-nə) or -nums
(Zoology) the sternum of the prothorax of an insect
References in periodicals archive ?
Shortest width of prosternal intercoxal process more than shortest distance between anterior margin of prosternum to procoxal cavity.
The front assembly of a dog involves a number of interrelated factors, including the length and angle of the upper arm; the depth and prominence of the prosternum, or forechest, and the length and arch of the neck.
The results of the cluster analyses based on the average shapes of the head, elytra and prosternum are shown in figure 3 that follows.
belti can be recognized by the following set of features: rostrum of male densely covered with setae beneath, its upper surface is remarkable in being raised along the middle, making it bisulcate; head beneath is wrinkled and the sides of the prosternum are granulate; elytra are of a beautiful silky metallic-green color with the suture purplish red.
Thorax: Prosternum large, abutting proepisternum and prothoracic coxae; dorsal (anterior) margin of prosternum with distinct flange-like projection (75); mesonotum strongly humped; postmetacoxal area membranous; anatergites asetose; pulvilli well developed; alula highly reduced (130); anal lobe and alula reduced and without bordering vein (ie.
Prosternum with anterior margin deeply concave with long entire hairs; prosternal carinae present; epipleuron deeply descending; tibia with spurs; tarsal claws appendiculate.
Prosternum whitish yellow, linear with rounded anterior margin and separated from the proepisternal plate by a relatively narrow membranous area.
Merobruchus sonorensis Kingsolver 33 (14) Prosternum separando la procoxa en toda su longitud; cuerpo usualmente negro.
Venter: prosternum parrot green, metasternum piceous, mesosternum and abdomen yellowish tinged with brown.
Venter: Prosternum separated from fused meso- and metasternum and sternites I + II by a suture, the latter medially with an oval depression; metapleural scent gland canals distinct and visible from above, abdominal spiracles II-IV ventral, V-VIII lateral and visible from above.
Prosternum whitish; meso and metasterna yellowish; sterna with scattered brownish stains.
For each individual we measured the following traits (see Preziosi and Fairbairn [1996] for a figure illustrating these measurements): total length, defined as the distance from the point of curvature of the anteclypus to the most distal point of the last genital segment; thorax length, defined as the distance from the most anterior medial point of the prosternum to the most posterior medial point of the metasternum; abdomen length, defined as the distance from the most anterior medial point of the second abdominal sternite to the most posterior medial point of the seventh abdominal sternite; and genital length, defined as the distance from the most posterior medial point of the seventh abdominal sternite to the most medial distal point of the last genital segment.