Open Access

Charles C. Porter

• Habronyx Foerster occurs in all regions except the Afrotropical and parasitizes lepidopterous larvae (Geometridae, Noctuidae, Saturniidae, Sphingidae, Psychidae). Habronyx albifrons (Spinola) inhabits neantartic Chile and southern Argentina. It is black with a white flagellar annulus and with a strong prepectal carina on the lower half of the mesopleuron. Habronyx albifrons is redescribed and descriptions are given of two new species which belong to a group of their own: Habronyx citrinus Porter, n. sp., from central Chile; and Habronyx punensis Porter, n. sp., from the high Andean steppe of Bolivia, where it attacks noctuid larvae on Chenopodium quinoa Willd. These differ from H. albifrons because the prepectal carina is absent on the mesopleuron, being developed only on the mesosternum, and because they have the flagellum uniformly black and the gaster extensively orange. Habronyx punensis differs from H. citrinus in having a sharp carina on the front, the mesopleural punctures not reticulately confluent, the discoidella weaker and in part desclerotized