prescutum


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prescutum

[prē′skyüd·əm]
(invertebrate zoology)
The anterior part of the tergum of a segment of the thorax in insects.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Abdominal segment I on prescutum with 4 long, slender setae and 20 short, spine-like setae; subscutum with 7 long, slender setae, without short setae; scutum with about 40 short, spine-like setae and 8 long, slender setae; scutellum with 10 short, spine-like setae and 30 long, slender setae.
Abdominal segment IV on prescutum with 2 long, slender setae and 40 short spine-like setae; subscutum with 10 long, slender setae, without short setae; scutum with 14 long, slender setae and 56 short spine-like; scutellum with 8 long, slender setae and 50 short spine-like setae.
Segments 1-5 strongly sclerotized dorsally, anterotransverse carinae distinct, each prescutum with an additional anterior carina, numerous small sensilla with four longer hair-like sensilla, spiracles near each anterolateral tergal margin; AB6 strongly sclerotized dorsally, laterally, and ventrolateral; ventral membranous area narrow, spiracles opening laterally at or near the dorso-pleural line distant from obscure lateral margin of turgum, carinae and chaetotaxy as on segments 1-5; segment 7 completely sclerotized.
Kirk-Spriggs, Malaise trap, indigenous Afromontane forest, BMSA(D)28302, one egg in left postalar callus; 1 [female] same data, BMSA(D)24731, one egg in dorsal part of right anepisternum; 1 [female] same data, BMSA(D)24724, one egg in left side, at suture between prescutum and scutum; 1 [female] same data, BMSA(D)24739, two eggs present: in dorsal part of right anepisternum and in inferior part of left katepisternum; 1 [female] same data but 22-24.xi.2010, hanging trap, baited fermenting fruit, BMSA(D)24722, one egg in anterior part of left notopleuron; 1 [female] same data, BMSA(D)28307, two eggs inserted in right side: in dorsal part of postpronotum and in right anterior spiracle (Fig.
South [male] abdominal syntergite Africa 1+2 Limnophora obsignata Burundi [female] prescutum, abdominal (Rondani) * syntergite 1+2 Pseudohelina Burundi [female] anepisternum nigritarsis (Jaennicke) * Pseudohelina Burundi [female] anepisternum nigritarsis (Jaennicke) * Pseudohelina Burundi [female] scutum phaeoxantha (Emden) * Pseudohelina sp.
Diagnosis: Prescutum with median white pollinose vitta; anterior spiracle dark brown; greater ampulla bare; mid tibia with 4-6 posterior setae, 1 strong ventral apical seta, without apical anterodorsal seta; vein [R.sub.4+5] almost bare with few setulae only at base.
Mesothorax: prescutum (prsc) 185-207 [micro]m wide and 100-112 [micro]m long, probably rather convex in life; with slight indications of nodulations; without prescutal setae; prescutal ridge (pscr) and prescutal sclerite (pscs) well developed.
Prescutum, scutum y scutellum del primer segmento franjados por conjuntos de setas cortas y robustas, cada franja con 90 a 100 setas, la franja escutelar mas ancha y larga; la region pedal casi glabra; segundo segmento abdominal con los dos primeros escudos franjados por 90 a 100 setas cortas robustas, el scutellum mas ampliamente franjado alcanzando mas de 200 setas, franja polistichia de hasta 6-7 setas de ancho, con una hilera posterior poco demarcada de 20-30 setas largas y finas, area pedal poco setosa y la region ventral con una cobertura de 4044 setas largas.