Published online by Cambridge University Press: 10 July 2009
The genus Stenobracon Szépligeti which contains species of economic importance for biological control of lepidopterous borers of sugarcane, rice and other graminaceous crops in Asia, is revised. Principal components analysis was employed to help delineate species. Six species, distributed from Pakistan to Australia, are recognized. Stenobracon brevis, S. clarus and S. malensis are described as new and Stenobracon nicevillei (Bingham), S. deesae (Cameron) and S. oculatus Szépligeti are redescribed. Illustrated keys for males and females are provided. Phanaulax levituberculatus Cameron is a new junior subjective synonym of S. nicevillei and S. trifasciatus Szépligeti is a new junior subjective synonym of S. oculatus. Elphea flavomaculata Cameron is synonymized with Ischnobracon (Bracon) laboriosus Cameron (comb. n). Host records are summarized.