Blastacaena

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Description de Maa (1963) :
Postclypeus strongly convex; keel strong, broad and running for its full length. Pleurostome very narrow at upper 1/2. Eye strongly swollen. Tylus transverse; occipital margin weakly sinuate at middle; antennal ledge strongly curved in vertical view of crown; ocelli slightly closer to eyes than ta each other. Pronotum about 3/5 as long as broad; its anterior portion in profile strongly declivous ; lateral angle horizontally laminate; anterolateral margin much longer than posterolateral margin; posterior margin broadly sinuate at middle; posterolateral angle acuminate, produced ventro-caudad. Scutellum with a distinct "neck" region in profile; its posterior 1/2 abruptly upraised; scutellar process only 3/5 as long as scutellum, slender, hardly arched, lying nearly on same level as anterior 1/2 of scutellum and originating below midpoint of postero-inferior margin; scutellar sulcus narrow, deep. Venation of tegmen and wing similar to that in Maxudea. Hind leg short, stout; coxa with a prominent tubercle at center of its lateral surface; tibia very robust at apex, with a stout lateral spine near middle; inner apical lobes of tarsomeres 1 and 2 slightly longer than outer ones. Male genital plate very broad; apical lobe of pygofer broadly truncate, scarcely produced.


Tête

Pronotum

Scutellum

Pattes

Ailes