The armilla group of genera of egg parasitoids in the family Platygastridae (Hymenoptera)

In many species of the superfamily Platygastroidea the ovipositor is partially housed within a dorsal expansion of the first metasomal tergite, the so-called horn. This structure has evolved independently numerous times in each of the six subfamilies. One group of genera related to Phoenoteleia Kieffer is characterized by a unique feature of the horn, the armilla. The genera and species in this group are revised; the group includes several new taxa. These genera belong to the Scelionini sensu lato, characterized by the ovipositor which is borne at the end of an elongate, telescoping intersegmental membrane. These genera are found in the Neotropics, Afrotropics, Australasian, and Oriental biogeographic regions.