Rilaena pusilla (Roewer, 1952)

Zacheus hyrcanus Redikorzev, 1936: 45–46, figs 18–19 [nec Phalangium hyrcanum Thorell, 1876, see comment below].

Platybunus pusillus Roewer, 1952: 513; Roewer 1956: 305.

Metadasylobus dentichelis Roewer, 1956: 268–269, figs 65–68 (synonymized by Staręga 1973: 144).

Rilaena pusilla Staręga, 1973: 143–146, figs 31–33 [replacement name for Rilaena hyrcana (Redikorzev, 1936)]; Staręga 1978: 218 (in part, not the record from Azerbaijan); Komposch 2002: 99; Snegovaya 2007: 90; Kurt 2015: 345; Snegovaya et al. 2018: 78, figs 3a–o; Cokendolpher et al. 2019: 341, fig. 10.

Type localities. Iran, Golestan Province, Gorgan, ( Zacheus hyrcanus) ; Iran, Gilan Province, Lahidjan ( Platybunus pusillus) ; Iran Tehran Province, Tehran ( Metadasylobus dentichelis) .

Material examined. IRAN: North Khorasan Province: 1 male, 3 females (ZMMU), 10 km NW of Dasht Village, 37°22’5.96”N, 55°56’40.57”E, 800–900 m a.s.l., Denis Kasatkin leg. 27.5.2017 . Golestan Province: 4 males, 14 females (RCNS), Shast Kalateh, 36°46’N, 54°11’E, 483 m a.s.l., Razieh Rafiei-Jahed leg. November 2017 .

Records from Iran. Gilan, Golestan, Kermanshah, Markazi, Mazandaran, Tehran, West Azerbaijan (Snegovaya et al. 2018), North Khorasan (present paper) .

Distribution. An endemic of Iran.

Comment. When Staręga (1973) transferred Phalangium hyrcanum Thorell, 1876 to the genus Rilaena, he also recognized Zacheus hyrcanus Redikorzev, 1936 as a member of Rilaena but not as the same species as Thorell’s. Therefore he substituted R. pusilla for the pre-occupied R. hyrcana (Redikorzev, 1936) and he wrote (in German): One has to call the treated species “ pusilla ” because the older name of Redikorzev is pre-occupied.