Cyana yunnanensis yunnanensis ( Hampson, 1903 )

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, Zootaxa 5323 (4), pp. 477-498 : 480-483

Cyana yunnanensis yunnanensis ( Hampson, 1903)

( Figs 7–14 , 38, 39 , 51 )

Chionaema yunnanensis Hampson, 1903 , The annals and magazine of natural history (7) 11: 346 (Type locality: [ China, W Yunnan Prov., Tengchong] “ Yunnan, Teng Yeuk ”).

= Chionaema hoenei [ originally spelled as hönei] Daniel, 1952, Bonner zoologische Beiträge, 3 (3–4): 312 (Type locality: [ China, NW Yunnan, Lijiang] “ Nord Yuennan: Li-kiang ”), syn. n .

Type material examined. Holotype of Chionaema yunnanensis (by monotypy) ( Fig. 7 ): “ Yunnan. | Teng Yeuk. | H.E. Hobson. | 1900–192.” / “ Chionaema | yunnanensis | type ♀ Hmpsn.” / red ring “Type” label / QR-code label with unique ID “NHMUK010402111” ( NHMUK). Holotype of Chionaema hoenei ( Fig. 9 ): male, yellow label “[ China, NW Yunnan, Lijiang] Li-kiang ca. 2000m | Prov. Nord-Yuennan | 28.8.1934. H. Ĥne” / red label “ Holotype | Chionaema | ĥnei Daniel” / pink label “Typus” ( ZFMK); paratypes of Chionaema hoenei : 1 female, same locality and collector as holotype but 1.X.1934 / Allotype Chionaema ĥnei Daniel / Allotypus, gen. prep. No.: AV1879 (prepared by Volynkin) ( ZFMK); 1 female, same locality and collector as previous but 5.ix.1934, unique ID ZFMK Lep153478, gen. prep. by Huang ( ZFMK).

Additional material examined. CHINA, YUNNAN: 1 male, [Diqing Tibetan Autonomous Prefecture,Adunzi] A-tun-tse (N Yunnan), Talsohle [valley bottom] ca. 3000m, 4.IX.1936, H. Ĥne, gen. prep. No.: AV1878 (prepared by Volynkin) ( ZFMK) ; 1 male, 2 females, Tse-Kou , 2000m, 28°02’N 98°54’E, 5–10. VI.2011, Jiří Klir leg., gen. prep. Nos.: AV3919 (male), AV3920 (female) (prepared by Volynkin) ( CKC) ; 1 male, West China, gen. prep. No. : AV2071 (prepared by Volynkin) ( ZFMK) ; 1 male, Nu Jiang Valley, road Fugong / Gongshan , 1650m, 27°01.49’N 98°52.54’E, 14. V.2018, Butvila & Saldaitis leg., gen. prep. No.: AV5581 (prepared by Volynkin) ( AFM) ; 1 male, 3.VIII.2019, Fanghua Town , Luliang County, Qujing City, Shao-kui Wen leg. ( SCAU) ; 1 male, same locality and collector as previous, but 13.IX.2019 ( CHSY) ; 1 male, same data as previous, but 30.VIII.2019 ( CHSY) ; 1 male, same data as previous, but 27.VIII.2019 ( CHSY) ; 1 male, same data as previous, but 10.IX.2019 ( CHSY) .

Note. Like some other species in the genus (demonstrated by Singh et al. (2020); also see C. bacilla below), C. yunnanensis has two colour forms: the red and the yellow ones. The holotype of the species represents a yellow form ( Fig. 7 ) while the type series of C. hoenei ( Figs 9, 10 ) has red transverse lines. An additional variation of the red form lacking transverse lines is also found in this species ( Figs 13, 14 ).

Diagnosis. The forewing length is 12.0–15.0 mm in males and 13.5–16.0 mm in females. The species ( Figs 7–17 ) is externally vaguely reminiscent of C. khami sp. n. and C. bacilla ( Figs 26–31 ) but differs clearly in the somewhat thinner ante- and postmedial lines, the lack of the subterminal line, the somewhat smaller black spots on the forewing, and the hindwing suffused with grey and pink and having a diffuse discal spot on the hindwing whereas it is unicolorous deep pink or ochreous yellow without a discal spot in the aforementioned congeners. The male genitalia of C. yunnanensis ( Figs 38, 39 ) are characterised by the vesica lacking cornuti and having a distal diverticulum with several tiny subdiverticula. The genitalia of both sexes ( Figs 38, 39 , 51 ) are most similar to C. dubernardi sp. n. ( Figs 37 , 53 ) and the detailed comparison is provided below under the diagnosis of the latter species.

Distribution. Currently known only from Yunnan Province of China ( Fig. 60 ).

Figures

FIGURE 60. Distribution map of Cyana spp. in E and SE Asia.

FIGURES 1–8. Cyana spp.: adults. Depositories of the specimens: 1 and 2 in MfN; 3 and 7 in NHMUK (©The Trustees of NHMUK); 4–6 in MWM/ZSM; 8 in CKC.

FIGURES 9–17. Cyana yunnanensis sspp.: adults. Depositories of the specimens: 9 and 10 in ZFMK; 11, 12 and 16 in CKC; 13 and 14 CHSY; 15 in MWM/ZSM (ex CKC); 17 in FMF-B.

FIGURES 38–41. Cyana yunnanensis sspp.: male genitalia. Depositories of the specimens dissected: 38 in ZFMK; 39 in CKC; 40 in MWM/ZSM (ex CKC); 41 in GMF-B.

FIGURES 49–53. Cyana spp.: female genitalia. Depositories of the specimens dissected: 49 in MfN; 50 in MWM/ZSM; 51 in ZFMK; 52 in CKC; 53 in NHMUK (©The Trustees of NHMUK).

FIGURES 26–33. Cyana spp.: adults. Depositories of the specimens: 26, 30 and 32 in MWM/ZSM (26 and 32 ex CKC); 27 and 33 in CKC; 28, 29 and 31 in GMF-B.

FIGURES 34–37. Cyana spp.: male genitalia. Depositories of the specimens dissected: 34 in MfN; 35 in ZFMK; 36 in MWM/ ZSM; 37 in NHMUK (©The Trustees of NHMUK).