Cyana khami, Volynkin & Černý & Huang & Saldaitis, 2023

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 : 486-488

Cyana khami sp. n.

( Figs 26, 27 , 44, 45 , 55 )

= Cyana bacilla: Volynkin & Černý (2019: figs 17, 18, 31, 38), misidentification.

Type material. Holotype ( Figs 26 , 44 ): male, “Laos, prov. Khammouane, | Muang Gnomarat , 150 m, | 105°09,778’E; 17°33,295’N [17°33.295’N 105°09.778’E] | 1.VI.2014 leg. K. Černý ” / “Slide | AV3923ϐ | A. Volynkin ” ( MWM / ZSM, ex coll. CKC).

Paratypes. LAOS: 22 males, 11 females, same data as holotype, gen. prep. Nos.: AV3924 (male), AV3925 (female) (prepared by Volynkin) ( CKC) ; 1 male, 4 females, Khammouane Prov., Khoun Ngeun, Sala Viewpoint, 480m, 18°10.7’N 104°29’E, 30–31.V.2014, K. Černý leg. ( CKC) ; 4 males, 1 female, Khammouane Prov., Muang Khai, 160m, 17°27.681’N 104°54.980’E, 27–29.V.2014, K. Černý leg. ( CKC) ; 1 male, Khammouane Prov., Ban, Khoun Ngeun vill. env., 16–29. V. 2010, 300m, M. Štrba, R. Mlčoch leg., gen. prep. No.: MWM 34.567 (prepared by Volynkin) ( MWM / ZSM) ; 1 female, same locality and collectors as previous but 17. V.–6. VI.2007, gen. prep. No.: MWM 34.568 (prepared by Volynkin) ( MWM / ZSM) ; 2 females, Khammouane Prov., Phou Hin Boun , 500m, 18°10.435’N 104°29.042’E, 29–30.vi.2012 ( GMF-B) .

Diagnosis. The forewing length is 11.0–12.0 mm in males and 13.5–14.0 mm in females. Cyana khami sp. n. ( Figs 26, 27 ) is externally reminiscent of C. bacilla ( Figs 28–31 ) but can be distinguished by the somewhat broader forewing (the length to width ratio is ca. 2.1:1 vs. 2.25–2.69 in C. bacilla ), the brighter, scarlet transverse lines of the forewing (they are pale scarlet, orange or amber yellow in the congener), and the darker, pale scarlet hindwing which is pink or pale ochreous yellow in C. bacilla . Despite the external similarity to C. bacilla , the male genitalia of the new species ( Figs 44, 45 ) are most similar to C. griseilinea ( Figs 42, 43 ). In the male genital capsule, C. khami sp. n. differs from C. griseilinea in the broader saccus, the markedly broader distal section of the valva, and the narrower serrulate plates of the anellus. The phallus of the new species is shorter and narrower than in the similar congener. Compared to C. griseilinea , the vesica of C. khami sp. n. is considerably shorter and narrower, having shorter diverticula, and bearing a shorter and elliptical lateral cluster of shorter spines which is ribbon-like in the congener. The female genitalia of C. khami sp. n. ( Fig. 55 ) differ from C. griseilinea ( Fig. 54 ) in the narrower and more weakly sclerotised ductus bursae, the narrower and markedly more weakly sclerotised posterior section of the corpus bursae, the longer and broader anterior section of the corpus bursae bearing larger signa, and the broader and more rounded appendix bursae with a more elliptical bulla (it is teardrop-shaped in C. griseilinea ).

Distribution. Central Laos (Khammouane Province) ( Fig. 61 ).

Etymology. The new species is named after the character of Lao fairy tales, novice Kham also known as Xieng Mieng, a famous trickster. The specific epithet refers to the confusing similarity of the new species with C. bacilla . The name is a noun in the genitive case.

Figures

FIGURE 61. Distribution map of Cyana spp. in E and SE Asia.

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 42–45. Cyana spp.: male genitalia. Depositories of the specimens dissected: 42 in CKC; 43–45 in MWM/ZSM (44 ex CKC).

FIGURES 54–57. Cyana spp.: female genitalia. Depositories of the specimens dissected: 54 and 55 in MWM/ZSM; 56 in GMF-B; 57 in CKC.