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Description de Maa (1963) :
Pronotum distinctly wider than long; its lateral margin strongly explanate; oblique ental carina long, strong; posterolateral angle spiniform. Scutellar sulcus long, deep, its rims strongly explanate in side view and meeting each other in an acute angle. Scutellar process straight or nearly straight in profile, originating from near midpoint of postero-inferior scutellar margin, basally strongly compressed bila1erally. Tegmen excessively long and narrow; claval vein running apart from claval furrow. Legs short; hind tibia much longer than hind femur. Other characters similar to Grypomachaerota E. Schmt. Male genitalia (of P. gressitti) also similar.