Cyana adelina

Cyana adelina (Staudinger, 1887) (Figs 1, 2, 34, 49) Bizone adelina Staudinger, 1887, Mémoires sur les lépidoptères, 3: 191, pl. 10, fig. 14 (Type locality: [Russia, Far East, Primorye Region, Vladivostok] “ Wladiwostok ”). Type material examined. Lectotype (hereby designated) (Figs 1, 34): male, [Russia, Primorye Region, Vladivostok] “Wladiwostock” / “ Chionaema | adelina | Stgr. | Hps.” / pink label “Origin.” / “446.” / “ex coll. 1/2 | Staudinger” / “ MfN gen. prep. | A. Volynkin 2021 | No MfN 379 | ϐ”, DNA voucher MFNLEP1057 (MfN). Paralectotype: female, “Wladiwostok” / violet round label / pink label “Origin.” / small rectangular label with unreadable text / “ex coll. 2/2 | Staudinger” / “ MfN gen. prep. | A. Volynkin 2021 | No MfN 380 | ϐ”, DNA voucher MFNLEP1058 (MfN). Additional material examined. KOREA: 1 male, 1 female, Choanyi / ex coll. Weber 13/57, gen. prep. Nos.: AV2068 (male), AV2069 (female) (ZFMK). Note. The species has been described based on a male and two females (Staudinger 1887). In order to stabilise the nomenclature, the male syntype preserved in the MfN is hereby designated as the lectotype. Diagnosis. The forewing length is 14.0–15.0 mm in males and 17.0–17.5 in females. Cyana adelina (Figs 1, 2) is externally similar to C. pratti (Figs 3–6) but differs clearly in the forewing lacking the subterminal red line, and the paler hindwing. The male genital capsules of the two species display no remarkable differences and the diagnostic features are found only in the vesica structure, which is markedly shorter and narrower in C. adelina (Fig. 34), and has shorter diverticula in comparison to the corresponding structures of C. pratti (Fig. 35, 36). The differences between the two species are more substantial in the female genitalia: compared to C. pratti (Fig. 50), those of C. adelina (Fig. 49) have a broader sclerotised posterior, and a shorter and narrower anterior section of the corpus bursae, and a markedly narrower and somewhat shorter appendix bursae. Distribution. Southern part of the Russian Far East (Primorye Region) (Staudinger 1887; Dubatolov et al. 1993; Dubatolov 2014, 2019), Korea (Daniel 1952) (Fig. 60).Published as part of Volynkin, Anton V., Černý, Karel, Huang, Si-Yao & Saldaitis, Aidas, 2023, Taxonomic review of the Cyana adelina (Staudinger) species-group (Lepidoptera: Erebidae: Arctiinae) with descriptions of three new species and one new subspecies from Laos, Thailand and China, pp. 477-498 in Zootaxa 5323 (4) on pages 479-480, DOI: 10.11646/zootaxa.5323.4.2, http://zenodo.org/record/821238