clypeus

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clypeus

[′klip·ē·əs]
(invertebrate zoology)
An anterior medial plate on the head of an insect, commonly bearing the labrum on its anterior margin.
(mycology)
A disk of black tissue about the mouth of the perithecia in certain ascomycetes.
References in periodicals archive ?
Adults of these populations can be separated based on the shape and size of their humeral and apical spots, clypeal fork, mesometasternal process and parameres, as well as pronotal and ventral background colour.
cambrai with the dicranius and mirabilis species-groups, but it is distinctly separated from both these species-groups by the lack of a clypeal horn (in males), or by the apex of clypeus truncate or slightly sinuate, not bidentate (in females).
43); rectangular area separating cephalic and clypeal processes (Fig.
Bronze; with clypeal teeth small and sharply upturned; frons with dense tuft of long white setae projecting forward (Fig.
Clypeal height about twice AME diameter; chilum divided (Fig.
Abbreviations an, antenna; ce, compound eye; cg, clypeal groove, cl, clypeus; cp, clamp; lb, labium; lb 1 & lb 2, labial segments 1 & 2; lg, labial groove; ls, labial sensilla; md, mandibular stylets; mx, maxillary stylets; rs, retracted/looped stylets; sf, salivary flange; so, stylet-holding organ; st, stylets.
ETYMOLOGY: The specific name is derived from two Latin words: tri- (= three) and dentata (= dentate), which refers to the anterior clypeal margin of the female, which has a medial set of three teeth.
Clypeal prominence medially with shallow, triangular emargination (Fig.
Body dull, clypeal margin widely rounded; pronotum with coarse punctures concentrated around smoother, finely uniformly punctate median anterior disc; coarse pronotal punctures on sides separated by one their diameter or more.
Clypeal eye-contact: clypeus touching the eyes = 0; clypeus narrowly separated from the eyes = 1 5.
Clypeal tubercle (CI) with 2 barbulate macrosetae (ML), 2 smooth setae (mi).
Clypeal suture bent back angularly at middle, often small depression at apex of angle; head not transversely carinate 7 -- Clypeal suture either straight at middle or not visible among punctures; head behind clypeal suture transversely carinate, at least at sides 10 7.