Malasigalphus

Key to species of the genus Malasigalphus 1. First metasomal tergite short, 1.2 × longer than its maximum posterior width. Recurrent vein (m-cu) of fore wing weakly antefurcal from first radiomedial vein (3-SR). Medial triangular area of metanotum with strong complete medial longitudinal carina. Body mostly reddish-brown, brownish black posteriorly. Body length 8.4 mm ............... M. roa Sharkey, 2008 - First metasomal tergite long, 1.8–2.7 × longer than its maximum posterior width. Recurrent vein (m-cu) of fore wing strongly antefurcal from first radiomedial vein (3-SR). Medial triangular area of metanotum without medial longitudinal carina. Body mostly black......................................................................................... 2 2. Clypeus largely smooth. Scutellum and propodeum without or with short white setae. Third radial abscissa (SR1) of fore wing straight. Second radial abscissa (3-SR) of fore wing only weakly curved. Nervulus (cu-a) interstitial. Fore femur yellowish brown. Hind femur slender, 5.9 × longer than its maximum width. First metasomal tergite with very fine spiracular tubercles in basal 0.2, not narrowed subapically and with latero-posterior depressions; length of tergite 2.7 × its posterior width. Body length 8.3 mm ..................................................... M. petiolaris van Achterberg & Austin, 1992 - Clypeus entirely densely reticulate-rugose. Scutellum and propodeum with dense and long white erect setae almost entirely. Third radial abscissa (SR1) of fore wing weakly broken. Second radial abscissa (3-SR) distinctly curved. Nervulus (cu-a) postfurcal. Fore femur brown. Hind femur thick, 4.4 × longer than its maximum width. First metasomal tergite with distinct subpointed spiracular tubercles in basal 0.2, narrowed subapically and without latero-posterior depressions; length of tergite 1.8 × its posterior width. Body length 10.9 mm ............................................. M. pubiscutellum sp. nov.