Platyxiphydria tiphiiformis Takeuchi 1938

Platyxiphydria tiphiiformis Takeuchi, 1938 Specimens examined. Yaita city: 1 ˁ, Happôgahara, 20. VI. 1976, T. Saito (NSMT, cited by Shinohara and Matsumoto, 2019). Ohtawara city: 1 ˂, Shimoishigami, 30. IV. 2004, E. Katayama (EK, cited by Katayama, 2005, and Shinohara and Matsumoto, 2019); 1 ˂, Shimoishigami, 21. V. 2005, E. Katayama (EK, cited by Katayama, 2005, and Shinohara and Matsumoto, 2019). Utsunomiya city: 1 ˂, Himuro-machi, 6–15. V. 2009, T. Nakamura (Malaise Trap) (TPM). Kanuma city: 1 ˁ, Kobugahara, 29. V. 1988, T. Saito (NSMT, cited by Shinohara and Matsumoto, 2019); 1 ˁ, Mt. Hagabasan, 25. V. 2011, M. Inaizumi (EK, cited by Shinohara and Matsumoto, 2019); 1 ˁ, Mino, 26. IV. 2015, T. Saito (NSMT, cited by Shinohara and Matsumoto, 2019). Sano city: 1 ˁ, Mt. Karasawa, 14. V. 1978, T. Saito (EK, cited by Nakamura, 2003, and Shinohara and Matsumoto, 2019). Tochigi city: 1 ˁ, Mt. Umairazu, Miya, Iwafune, 6. V. 2017, T. Kurihara. (TPM). Remarks. This species is known to occur in Hokkaido, Honshu, Shikoku and Kyushu (Shinohara and Matsumoto, 2019). From Tochigi prefecture, Nakamura (2003) first recorded Platyxiphydria flavipes and Katayama (2005) first recorded Platyxiphydria tiphiiformis. Shinohara and Matsumoto (2019) showed that these two Platyxiphydria taxa were different sexes of the same species and thus synonymous. Known host plants are Sambucus and Paulownia (Shinohara and Matsumoto, 2019). Unlike other Xiphydriidae from Tochigi prefecture, Platyxiphydria tiphiiformis has been found mainly on low mountains and plains.