Cacopsylla diaphana Cho & Burckhardt & Lee 2022, comb. nov.

Cacopsylla diaphana (Konovalova, 1981), comb. nov. (Figs. 84–85) Psylla diaphana Konovalova, 1981: 16. Psylla (Cacopsylla) peninsularis Kwon, 1983: 46, syn. nov. Psylla (Cacopsylla) peninsularis hanlasanensis Kwon, 1983: 46, synonymised with Cacopsylla peninsularis by Park (1996: 272). Cacopsylla (Hepatopsylla) sorbicoccinea Inoue, 2004a: 409, synonymised with Cacopsylla peninsularis by Cho et al. (2017a: 549). Cacopsylla (Hepatopsylla) peninsularis; Kwon & Kwon (2020: 168). Type material examined. Paratypes of Psylla diaphana. Russia: 1 ♂, 1 ♀, Primorsky Krai, Spassky District, western slopes of Siny (Blue) Range, near Evseevka, 19.vi.1978 (Konovalova), (IBSS, dry and slide mounted). Distribution in Korea. GB, GG, GN, GW, JB, JJ (Kwon 1983, as Psylla (Cacopsylla) peninsularis and P. (C.) peninsularis hanlasanensis; Anonymous 1994, as P. peninsularis hanlasanensis and P. peninsularis peninsularis; Park 1996, as C. penninsularis [sic]; Paek et al. 2010, as C. peninsularis and C. peninsularis hallsanensis [sic]; Lee et al. 2014, as C. peninsularis; Kwon et al. 2016, as C. peninsularis, Cho et al. 2017a, as C. peninsularis; Kwon & Kwon 2020, as C. (Hepatopsylla) peninsularis) (KNA, NHMB, NIBR, SNU). Host plant. Sorbus alnifolia (Siebold & Zucc.) K.Koch (Rosaceae) (Konovalova 1981; Cho et al. 2017a). Comments. A comparison of paratypes of Psylla diaphana (IBSS) with specimens of Psylla peninsularis from Korea (SNU) showed that the two taxa are conspecific. Here we formally synonymise C. peninsularis with P. diaphana and transfer the latter to Cacopsylla.Published as part of Cho, Geonho, Burckhardt, Daniel & Lee, Seunghwan, 2022, Check list of jumping plant-lice (Hemiptera: Psylloidea) of the Korean Peninsula, pp. 1-91 in Zootaxa 5177 (1) on page 41, DOI: 10.11646/zootaxa.5177.1.1, http://zenodo.org/record/702193