Cyana bianca ( Walker, 1856 )

Singh, Navneet, Volynkin, Anton V., Kirti, Jagbir Singh, Datta, Harvinder Singh & Ivanova, Maria S., 2020, A review of the genus Cyana Walker, 1854 from India, with descriptions of five new species and three new subspecies (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Zootaxa 4738 (1), pp. 1-93 : 9

publication ID	https://doi.org/10.11646/zootaxa.4738.1.1
publication LSID	lsid:zoobank.org:pub:B29D53CB-4E0D-4A25-97EC-ED983730E8B2
DOI	https://doi.org/10.5281/zenodo.3680121
persistent identifier	https://treatment.plazi.org/id/03B8587A-3D14-FB1E-5FC7-FB0AFBF1F818
treatment provided by	Plazi (2020-02-18 08:12:52, last updated 2024-11-26 01:52:02)
scientific name	Cyana bianca ( Walker, 1856 )
status

Treatment

Cyana bianca ( Walker, 1856) View in CoL

( Figs 11, 12 View FIGURES 11–18 , 165 View FIGURES 164–166 , 238 View FIGURES 234–239 )

Bizone Bianca Walker, 1856 , List of the Specimens of Lepidopterous Insects in the Collection of the British Museum 7: 1684 (Type locality: “Hindostan”).

Type material examined. Holotype (by monotypy) ( Figs 11 View FIGURES 11–18 , 165 View FIGURES 164–166 ): male, “Hind[ostan]” / “ Bizone bianca type Walk.” / “ Bianca n.” / “Type” / “226” / “501” / “A. Walker’s type of Bizone bianca 7-1684” / “TYPE (printed) LEP.: No. 429 Bizone bianca Walker (handwritten) HOPE DEPT. OXFORD (printed)” (Coll. OUMNH).

Other material examined. MEGHALAYA: 1 ♂, India, Meghalaya , Dangar, 30.VIII.2014, leg. H.S. Datta (Coll. NZCZSI) ; 2 ♀, NE India, W Meghalaya, Umran , 33 km N Shillong, 26°06’N, 92°23’E, 800 m, 14–23.VII.1997, leg. Sinjaev & Afonin, slide ZSM Arct. 2019 GoogleMaps - 332 ♀ Volynkin (Coll. MWM / ZSM) .

Diagnosis. Forewing length is 13–14 mm in males and 18–18.5 mm in females. Cyana bianca is most similar externally to C. juliettae (illustrated by Volynkin & Černý (2019b): fig. 2) and C. carmina ( Figs 13, 14 View FIGURES 11–18 ), but can be distinguished by the black outer margin of its antemedial line being arcuate, while in C. juliettae and C. carmina that is curved outwards at the anal wing margin. In addition, in C. bianca this margin is stronger curved at costa than that of C. carmina . In the male genital capsule, the valva apex is slightly broader than that of C. juliettae (illustrated by Volynkin & Černý (2019b): fig. 14) and C. carmina ( Figs 166 View FIGURES 164–166 , 167 View FIGURES 167–169 ). The vesica shape of C. bianca is most similar to that of C. carmina , but differs by its smaller dorsal medial diverticulum, narrower dorsal distal diverticulum covered with weaker spinules and granulation, larger apical diverticulum, smaller lateral diverticulum bearing narrower cluster of smaller spinules, and less granulated ventral distal diverticulum bearing smaller patch of spinules. The female genitalia of C. bianca are similar to those of C. carmina ( Figs 239 View FIGURES 234–239 , 240 View FIGURES 240–245 ), but differ by the longer apophyses anteriores and longer sclerotized anterior section of ductus bursae.

Distribution. India (Meghalaya) ( Walker 1856; Volynkin & Černý 2019b).

References

Volynkin, A. V. & Cerny, K. (2019 b) On the correct identification of Cyana bianca (Walker, 1856), with description of a new species and notes on the taxonomy of the Cyana insularis (Draudt, 1914) species-group (Lepidoptera, Erebidae, Arctiinae). Ecologica Montenegrina, 21, 53 - 61. [https: // www. biotaxa. org / em / article / view / 51318]

Walker, F. (1856) List of the specimens of lepidopterous insects in the collection of the British Museum. Vol. 7. Trustees of the British Museum, London, 300 pp. [pp. 1509 - 1808]

Figures

FIGURES 11–18. Cyana spp.: adults. 11, C. bianca, holotype ♂, India (OUMNH); 12, ditto, ♀, India, Meghalaya (MWM/ ZSM); 13, C. carmina carmina, ♂, The Philippines (CKC); 14, ditto, ♀, The Philippines (CKC); 15, C. arorai, ♂, India, S Andaman Isl. (MWM/ZSM); 16, ditto, ♀, India, S Andaman Isl. (MWM/ZSM); 17, ditto, holotype ♀ of C. tripunctata, India, S Andaman Isl. (©NHMUK); 18, ditto, ♀, India, S Andaman Isl. (MWM/ZSM).

FIGURES 164–166. Cyana spp.: male genitalia. 164, C. weerawoothi, Thailand, slide AV3897 Volynkin; 165, C. bianca, holotype, slide OUMNH 2019-1731 Volynkin; 166, C. carmina carmina, The Philippines, slide AV3858 Volynkin.

FIGURES 234–239. Cyana spp.: female genitalia. 234, C. detrita, India, Uttarakhand, slideAV2078 Volynkin; 235, C. coccinea coccinea, India, West Bengal, slide MWM 34418 Volynkin; 236, C. coccinea flavotincta, paratype, India, Assam, slide MWM 34420 Volynkin; 237, C. weerawoothi, Thailand, slide AV3898 Volynkin; 238, C. bianca, India, Meghalaya, slide ZSM Arct. 2019-332 Volynkin; 239, C. carmina carmina, The Philippines, slide AV3859 Volynkin.

FIGURES 167–169. Cyana spp.: male genitalia. 167, C. carmina malacca, Thailand, slide AV3861 Volynkin; 168, C. arorai, India, S. Andaman Isl., slide MWM 34564 Volynkin; 169, ditto, India, M. Andaman Isl., slide MWM 33907 Volynkin.

FIGURES 240–245. Cyana spp.: female genitalia. 240, C. carmina malacca, The Philippines, slide AV3862 Volynkin; 241, C. arorai, two spotted form, India, S.Andaman Isl., slide MWM 34602 Volynkin; 242, ditto, three spotted form, India, M.Andaman Isl., slide MWM 35680 Volynkin; 243, C. abrupta, paratype, India, Assam, slide ZSM Arct. 137/2017 Volynkin; 244, C. puer, India, Meghalaya, slide MWM 34489 Volynkin; 245, C. neopuer, paratype, India, Meghalaya, slide MWM 34468 Volynkin.