Revision of Central European species of the Aclista scutellaris complex (Hymenoptera: Diapriidae)
The Aclista scutellaris (Thomson, 1859) species complex (Diapriidae: Belytinae) is defined. Species of the complex from Central Europe are revised and keyed. The female of Aclista scutellaris, type species of Aclista Förster, 1856, is described. Two new species are described: Aclista pseudosoror sp. nov. from Austria, the Czech Republic, England, Germany, Poland, Slovakia, Spain, and Sweden, and A. pseudobitensis sp. nov. from Austria, the Czech Republic, England, Finland, Germany, Hungary, Poland, Slovakia, and Sweden. The following new synonymies are proposed: Aclista angusta (Kieffer, 1909) = Anectata (Anectata) fuscicornis Kieffer, 1909, syn. nov. and Anectata (Anectata) levifrons Kieffer, 1909, syn. nov. and Anectata (Anectata) soror Kieffer, 1909, syn. nov. and Oxylabis marshalli Kieffer, 1907, syn. nov.; Aclista scutellaris = Aclista bispinosa Wall, 1967, syn. nov. The following new distributions are recorded: Aclista scutellaris from Austria, Slovakia, Hungary, and Poland; A. crassistilus (Kieffer, 1909) and A. szelenyii (Móczár, 1938) from the Czech Republic; A. bitensis (Kieffer, 1909) from Austria, the Czech Republic, Hungary, and Poland; A. neglecta (Kieffer, 1907) from Austria, Germany, Hungary, and Slovakia; A. angusta from Austria, Germany, Hungary, and Poland.