An illustrated key to the eight species of Zaglyptogatra Ashmead known to occur in the Indo-Australian Region is provided. Three species are described as new: aswada from Sumatra, maiada from Malaysia, and novaguinensis from Papua New Guinea. Z. griseiseta (Enderlein) comb. nov. (= Megagonia griseiseta Enderlein) is treated as a junior synonym of Z. corruscator (Cameron and Strand). The type specimen of Iphiaulax ingratellus Cameron has been re-discovered and this species is transferred to Zaglyptogastra for the first time.