mesosternum


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mesosternum

[¦me·zō′stər·nəm]
(anatomy)
The middle portion of the sternum in vertebrates. Also known as gladiolus.
(invertebrate zoology)
The ventral portion of the mesothorax in insects.
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References in periodicals archive ?
Mesonotum with 1 long notopleural, 1 similar postalar and 4 scutellars (lateral pair nearly as long as notopleural seta, apical pair longer, subparallel); acrostichals lacking; dorsocentrals uniserial, mostly minute, prescutellar pair nearly as long as lateral scutellars; mesosternum and metasternum bare between posterior four coxae.
Ventrally the prosternal canal ends at the middle of the middle coxae, width of mesosternum at the separation between middle coxae wider than the dorsal apex of the rostrum, and 1.
Submacropterous to macropterous, hemelytral membrane almost reaching the apex of abdominal segment VII; labium reaching posterior margin mesosternum or basal third of metasternum 3
A) Prothorax, B) Pterothorax, mesonotum and metanotum with many closely spaced striations, C) Mesosternum and metasternum with many discal setae, and D) Wing, pale translucent with transverse veins evident and well developed between the longitudinal veins.
Finally, the paired tubercles at the anterior margin of the mesosternum are much larger and more prominent in R.
73:1), with many setae at apical margin; anterior margin of the clypeus rounded and partially rugose, basal third of the elytral intervals convex, ventral posterior marginal line face of the mesofemur and metafemur incomplete, base of all abdominal sternites visibly fluted, mesosternum carinate between the mesocoxae, mesotibia- and metatibia with accessory spine and one seta between it and the inferior spur, abdominal sternites with homogeneous punctation, anterior edge of pygidium punctate, front and disc of pronotum with heterogeneous punctation, scutellum longer than wide.
4--Lateral angles of the pronotum not greatly expanded, if slightly expanded, then posterior margin of pronotum not gently curved but angled; anterior lobe of pronotum at most half as long as posterior lobe; mesosternum nearly flat Zelus
Ventrally the head and prothorax are pale orange with following areas black: posterior area of gula, and a long macula on propleura; rostral segments ochraceous with most of segment IV black; mesothorax dark orange with a fine whitish cerumen, acetabula ochraceous and mesosternum black; metathorax dark orange with a fine whitish cerumen, acetabula and posterior margin whitish yellow; posterior margin of metathorax with a middle rectangular pale brown macula; coxae brownish orange with apex yellow; trocanter, tarsi and femora bright yellow; femora with a brown orange subapical ring; sternites brownish orange with brownish scattered areas.
Median groove on thoracic sterna interrupted by a transverse sinuous carina between mesosternum and metasternum Gargaphia Stal