Traumatomutilla André, 1901 is a genus of Mutillidae Latreille, 1802 with 14 species-groups, of which the T. gemella group is one of the most poorly known. The hitherto unknown males of Traumatomutilla diophthalma (Klug, 1821), T. chuza Casal, 1969, and T. gemella André, 1906 are described and illustrated. The females of T. andrei (Cresson, 1902), T. angustata (André, 1906), T. chuza Casal, 1969, T. diopthalma (Klug, 1821), and T. gemella (André, 1906) are redescribed. A new species, T. peismatara Bartholomay & Cambra, n. sp. (female from Peru, male from Brazil) is described. Two host records (Podium sp. from Sphecidae Latreille, 1802 and Trypoxylon sp. from Crabronidae Latreille, 1802) are provided for T. diophthalma based on trap nest data. Traumatomutilla rastra Casal, 1969 is recognized as a new synonym of T. angustata (André, 1906).
Sphaeropthalminae, Dasymutillini, velvet ants, Neotropics, South America, new species, new synonymy, new host records