On two poorly known Eurasian dictynid species (Aranei: Dictynidae), with a description of a new genus

A new genus and two poorly known species of the Dictynidae from Central Asia are (re)described. Dictyna uzbekistanica Charitonov, 1946, hitherto known from the holotype female from Uzbekistan, is redescribed and illustrated on the basis of the holotype and new material from Iran; it is transferred to a newly erected monotypic genus Kharitonovia gen.n. The widespread Central Asian "Nigma" laeta (Spassky, 1952) known from Tajikistan, western Azerbaijan and Iran is redescribed and illustrated on the basis of newly collected material from Iran. Dictyna uzbekistanica vittata Charitonov, 1946 syn.n. is synonymized with K uzbekistanica (Charitonov, 1946). Four species of the genus Nigma Lehtinen, 1967 are shown to be treated as insertae sedis: "Nigma" conducens (O.Pickard-Cambridge, 1876) (Egypt), "Nigma" laeta (Spassky, 1952) (Central Asia), "Nigma" linsdalei (Chamberlin et Gertsch, 1958) (California), and "Nigma" longipes (Berland, 1914) (Kenya).