mesosoma constricted at base of forewings (Fig. 146); pronotum large, collar mid-dorsally long; mesoscutum small, notaulices absent; mesoscutellar fovea absent; metanotum bispinose (Figs 146, 147), carinae absent; posterior margins of gastral tergites not defined laterally; ocelli absent; antenna of male with flagellum weakly clubbed (Fig. 156) and 51 carinate; male gaster with median longitudinal band ventrally