Discovery of Trichopria keralensis (Hymenoptera, Diaprioidea, Diapriidae) in South Korea and Japan, a review of the keralensis species group of Trichopria and the nomenclature and synonymy of Alareka

Trichopria keralensis is recorded for the first time from South Korea and Japan and a detailed redescription and photographs of this species are given. The genus Alareka is a junior synonym of Trichopria syn. n. Alareka keralensis is transferred to Trichopria keralensis comb. n. T. keralensis and closely related species are referred to the keralensis species group of Trichopria. The keralensis species group is recorded here for the first time from the East Palaearctic, West Palaearctic, Afrotropical and Australian (Oceanian) regions. The multiple original spellings of Alareka, Alarika, Alareka keralensis and Alareka keralaensis are resolved.