Platorchestiinae subfam. nov. (Amphipoda, Senticaudata, Talitridae) with the description of three new genera and four new species Author Lowry, J. K. Author Myers, A. A. 0000-0003-3256-2123 School of Biological, Earth and Environmental Sciences, University College Cork, Cork Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland. bavayia @ gmail. com; https: // orcid. org / 0000 - 0003 - 3256 - 2123 bavayia@gmail.com text Zootaxa 2022 2022-02-17 5100 1 1 53 journal article 20608 10.11646/zootaxa.5100.1.1 cabdbbb1-1226-4c2e-b90b-fae0742b5091 1175-5326 6127681 F42DAC62-0E30-442E-A375-87FC02B2CC99 Yamatorchestia nudiramus ( Morino & Miyamoto, 2015 ) ( Fig. 25 ) “ Parorchestia ” sp. 2 Miyamoto, 1982: 94 “ Parorchestia ” sp. 3 Morino, 1999 , 640, Fig. 1 , 644. Nipponorchestia nudiramus Morino & Miyamoto, 2015: 9 , figs 6, 7.— Tomikawa, 2017: 254 , table 1. Yamatorchestia nudiramus Takahashi & Morino, 2021: 12 . FIGURE 25. Yamatorchestia nudiramus ( Morino & Miyamoto, 2015 ) , after Morino & Miyamoto, 2015 . Types. Holotype , male, 7.4 mm , NSMT-Cr 23754. Paratypes : female, 7.7 mm , NSMT-Cr 23755; 7 males , 5 females , 39 juveniles , NSMT-Cr 23756; 1 female , 9.2 mm , NSMT-Cr 23762. Type locality. Ashu , Research Forest , Kyoto University, Kyoto , Japan . Ecological type . Forest-hopper. Habitat. Living in Aesculus turbinata forest, in Cryptomeria forests at 420 m altitude and in Acer , Fagus crenata and Quercus crispula forests. Size. Male, 7.4–8.2 mm , female, 7.7–9.2 mm . Diagnosis ( male ). With the characters of the genus. Distribution. Japan . Central Honshu ( Morino & Miyamoto 2015 ).