Cyana bacilla Fang, 1992

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 : 488

publication ID	https://doi.org/ 10.11646/zootaxa.5323.4.2
publication LSID	lsid:zoobank.org:pub:6E5A4DE3-707C-489C-9DD5-B8059A70AB5A
DOI	https://doi.org/10.5281/zenodo.8212404
persistent identifier	https://treatment.plazi.org/id/1641BB3D-731B-E20B-84AD-11188F4969DA
treatment provided by	Plazi
scientific name	Cyana bacilla Fang, 1992
status

Treatment

Cyana bacilla Fang, 1992 View in CoL

( Figs 28–31 View FIGURES 26–33 , 46, 47 View FIGURES 46–48 , 56 View FIGURES 54–57 )

Cyana bacilla Fang, 1992 View in CoL , Sinozoologia, 9: 260, 265, fig. 2 (Type locality: [ China] “ Pingxiang , Guangxi, 230m ”).

Type material examined. Photograph of the holotype: male, “ ẾflÎǐ [Guangxi, Pingxiang] | 230 »º [m] | ϕOifiḯlj [Chinese Academy of Sciences]” / “ 1976.VI.10 | ỊșÌ: Ẁƚƀ [leg. Cheng-lai Fang]” / “ Cyana bacilla | Fang | ḬṱÌ: Ẁƚƀ [identifier: Cheng-lai Fang]” / “ϐ” / red label “Holotype” / blue label with unique ID “ IOZ ( E) 208949 ” ( ICZAS).

Additional material examined. VIETNAM: 3 males, Cao Bằng Prov., Ba Be Lake NP , 300m, II.2009, gen. prep. Nos.: AV6738 , AV6740 ( GMF-B) ; 1 male, 1 female, same data as previous but III.2009, gen. prep. Nos.: AV6742 (male), AV6739 (female) ( GMF-B) ; 2 males, same data as previous but V.2009, gen. prep. No.: AV6741 ( GMF-B) ; 1 male, same data as previous but VIII.2009 ( GMF-B) ; 1 male, Thái Nguyên Prov., 40 km E [ca. 20 km N] Thái Nguyên City, Mỏ Ba , 200m, II.2009, gen. prep. No.: AV6743 ( GMF-B) ; 2 males, Tuyên Quang Prov., Na Hang Nature Reserve , 300m, 22°03’N 105°05’E, 22.II.–5.III.1997, G. Csorba leg., gen. prep. No.: ZSM Arct. 2020- 113 (prepared by Volynkin) ( MWM / ZSM) GoogleMaps .

Diagnosis. The forewing length is 11.5–13.0 mm in males and 15.0 mm in the female. Cyana bacilla ( Figs 28–31 View FIGURES 26–33 ) is most similar externally to C. khami sp. n. ( Figs 26, 27 View FIGURES 26–33 ) and differs in the somewhat longer forewing in both sexes, the paler transverse lines of the forewing varying from pale scarlet or orange to amber yellow (whereas they are bright scarlet in the congener), and the paler hindwing varying from pink to pale ochreous (whereas it is pale scarlet in C. khami sp. n.). The male and female genitalia of C. bacilla ( Figs 46, 47 View FIGURES 46–48 , 56 View FIGURES 54–57 ) are most similar to C. karsticola sp. n. ( Figs 48 View FIGURES 46–48 , 57 View FIGURES 54–57 ) and the detailed comparison is provided below in the diagnosis of the latter species.

Distribution. South China (Guangxi Zhuang Autonomous Region) ( Fang 1992, 2000) and Northern Vietnam (Tuyên Quang, Thái Nguyên and Cao Bằng Provinces) ( Fig. 61 View FIGURE 61 ). The record from central Laos (Volynkin & Černý 2019) belongs to C. khami sp. n.