Descriptive notes on a new and other little known species of Anagrus Haliday, 1833 (Hymenoptera: Mymaridae) from the New World tropics and subtropics

Resumen

A new fairyfly species from the New World, Anagrus stethynioides Triapitsyn sp. n., is described and illustrated. A new species group of the subgenus Anagrus Haliday, 1833 s. str. is established based on this species, and its diagnosis is provided. Anagrus armatus (Ashmead, 1887) is redescribed from material from Florida and Puerto Rico. Anagrus urichi Pickles, 1932, a Neotropical species important for the natural biological control of several froghopper pests of sugarcane and other plants, is redescribed from specimens reared from the eggs of Cercopidae in Brazil and Guyana. An updated key to the Neotropical species of the genus Anagrus Haliday, 1833 is given and new information is provided about distribution and host associations of some of these species.