Platyxiphydria saitoi, Robles Cabanillas & Hurtado Navarro & García-Sempere & Llopis-Cardona & Sánchez-Sáez & Rodríguez-Bernal & Sanfélix-Gimeno, 2024

Hyperxiphia nakanishii ( Takeuchi, 1938)

Specimens examined. Yaita city: 1 ˂ (holotype of Platyxiphydria saitoi Togashi, 2003 ), l Happogahara, Yaita-shi [Tochigi Pref.], 20. VI. 1976, T. Saito z l Holotype Platyxiphydria saitoi new species z (NSMT, cited as Platyxiphydria sp. by Nakamura, 2003). Nikko city: 1 ˁ, Chûgûshi, 10. VIII. 2012, S. Maehara (NSMT); 1 ˂, Senjugahama, Chûgûshi, 19. VI. 2017, S. Maehara (NSMT).

Remarks. Takeuchi (1938) described this species as Euxiphydria leucopoda var. nakanishii , but Maa (1949) treated it as a separate species and transferred it to the genus Hyperxiphia Maa, 1949 . The holotype, the only specimen then known, is from Tottori prefecture ( Takeuchi, 1938; Smith and Shinohara, 2011), western Honshu, and the species was later recorded from Kanagawa and Nagano prefectures ( Hara and Shinohara, 2018). Togashi (2003) described Platyxiphydria saitoi from Tochigi prefecture based on the holotype with the collection data l˂, 20. vi. 1976, Happogahara, Yaita City, Tochigi Pref, T. Saito leg.z l Platyxiphydria sp. z in Nakamura (2003) is Platyxiphydria saitoi , as noted by Nakamura (2004). Hara and Shinohara (2018) synonymized Platyxiphydria saitoi with Hyperxiphia nakanishii . This is a rare species and nothing is known about its life history.