prescutum


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prescutum

(priːˈskjuːtəm)
n
(Zoology) a part of an insect's thorax
References in periodicals archive ?
El area tergal metatoracica, de cuticula transparente y coloracion debil, tiene una franja anterior o prescutum, dividida en una parte media y dos laterales convexas y una central triangular.
Abdominal segment I on prescutum with 4 long, slender setae and 25 short, spine-like setae; subscutum with 9 long, slender setae, without short setae; scutum with about 45 short, spine-like setae and 10 long, slender setae; scutellum with about 12 short, spine-like setae and 39 long, slender setae.
Pro-, meso-, and metaterga widest near mid-point, protergum longer and wider than meso- and metaterga combined, meso- and metaterga sub-equal in length; protergum with distinct marginal antero- and postero-transverse carinae, prescutum narrow weakly, developed medially, meso- and metaterga with distinct anterotransverse and posterotransverse carinae, each prescutum with an additional carina; terga sparsely populated with small sensilla; spiracular openings present in membranous pleural area below the acute anterolateral boundary of the mesotergum.
Kirk-Spriggs, Malaise trap, indigenous Afromontane forest, BMSA(D)25803, two eggs present: in prescutum and in left ventral side of syntergite 1+2 (adjacent to sternite 1) (Fig.
Thorax arched, sparsely pubescent, finely rugulose; prothorax convex, roof-shaped, descending, with two foveal impression on each lateral side; prescutum broader than long, broadest posterior to center, narrower anteriorly, angulate laterally and on posterior margin; scutum much broader than long, slilghtly shorter than prescutum, weakly depressed dorso-medianally, angulate laterally, posterior margin weakly invaginated along scutellum; scutellum trapezoid, broad anteriorly and narrow posteriorl, about twice as broad as long.
Black, with gray microtomentum; prescutum and scutum with intermediate and lateral stripes with gray microtomentum and three brown bands; scutellum with intermediate stripes with gray microtomentum interrupted in the middle by a brown oval spot; postpronotal lobe, notopleuron, katepisternum and anepimeron with gray microtomentum; anepisternum gray with a brown spot near to notopleuron; proepisternum gray, sometimes with few pale setulae on middle portion; two proepisternal setae strong, and one proepimeral setae, katepisternals 2, postalar wall bare.
2) brillante de color purpura azul o verde metalico, prescutum sin bandas, macho con la parafacial y placas orbitales oscuras sin reflejos brillantes oscuros, setas postgenales (barba) y cabeza de color amarillo plateado o crema, espiraculo anterior (Fig.
Organ Long, Short, siender setae spine-like setae Abdominal segment I Prescutum 4 2 Subscutum Absent Absent Scutum 8 16 Scutellum 10 10 Abdominal segment II Prescutum 4 16 Subscutum 1 3 Scutum 10 35 Scutellum 7 28 Abdominal segment III Prescutum 4 22 Subscutum 1 3 Scutum 8 44 Scutellum 8 31 Abdominal segment IV Prescutum 24 4 Subscutum 1 3 Scutum 8 39 Scutellum 10 33 Abdominal segment V Prescutum 4 25 Subscutum 1 3 Scutum 19 40 Scutellum 10 34 Abdominal segment VI Prescutum 4 33 Subscutum 1 3 Scutum 19 28 Scutellum 10 15 Abdominal segment VII (2 row).