Revision of Hellén types of Alloxysta Förster (Hymenoptera: Figitidae, Charipinae)

Alloxysta type material described by Hellén and deposited in the Finnish Museum of Natural History (Helsinki, Finland), and the Göteborg Naturhistoriska Museet (Göteborg, Sweden) is revised. Nine species were studied; seven are considered valid: Alloxysta apteroidea Hellén, 1963; Alloxysta brachycera Hellén, 1963; Alloxysta glebaria Hellén, 1963; Alloxysta heptatoma Hellén, 1963; Alloxysta nigricans Hellén, 1963; Alloxysta patens Hellén, 1963 and Alloxysta soluta Hellén, 1963. These species are completely redescribed and their diagnostic characters are illustrated in corresponding plates. Alloxysta islandica Hellén, 1931 is here synonymized with Phaenoglyphis villosa (Hartig, 1841). The synonymy of Alloxysta ruthei Hellén, 1931 with Alloxysta fuscipes (Thomson, 1862) is confirmed. Lectotypes and paralectotypes have been established when necessary