| Abstract A new species of microgastrine wasp, Cotesia invirae Salgado-Neto & Whitfield, sp. nov., is described from southern Brazil in Santa Maria, Rio Grande do Sul. This species is a koinobiont gregarious larval endoparasitoid and spins a common mass of cocoons underneath the host caterpillars of Opsiphanes invirae (Huebner, 1818) (Lepidoptera: Nymphalidae), feeding on the palm trees Syagrus romanzoffianum (Cham.) Becc.; Livistona chinensis (N.J. Jacquim) R. Brown; Roystonea regia (HBK) O.F. Cook; Archontophoenix cunninghamiana Wendland & Drude (Palmaceae). Morphological, molecular, biological, ecological and geographical data are integrated to describe the new species. |
