Cyana linatula ( Swinhoe, 1891 ), 2020

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 : 15

Cyana linatula ( Swinhoe, 1891) , stat. rev.

( Figs 30–32 , 175 , 248 )

Bizone linatula Swinhoe, 1891 , Transactions of the Entomological Society of London 1891: 135 (Type locality: [ India, Maharashtra] “Khandalla and Matheran”).

Type material examined. Lectotype (designated herein) ( Fig. 32 ): ♀, handwritten label “1801 Khandalla 10-86” / handwritten label “ Bizone linatula Swinhoe type” / printed round label with a red circle “Type” / printed label with a unique identifier “NHMUK010918024” (Coll. NHMUK).

Other material examined. MEGHALAYA: 2 ♂, NE India, Assam, W Meghalaya, Garo Hills, Nokrek Nation- al Park , 25°40’N, 91°04’E, 1150 m, 2–13.VII. 1997, leg. Afonin & Sinajev, slide MWM 34509 (♂) Volynkin (Coll. MWM / ZSM) ; TAMIL NADU: 9 ♂, India mer., 1000 m, Tamil Nadu, Kalkad, Wildlife Sanctuary, Manjolai , 6– 7.IV.1997, 8.15’N, 77.27’E, tea estate / rainforest, Sinjaev & Schintlmeister, slides MWM 34407 (♂), MWM 34510 (♂) Volynkin ( Coll. MWM / ZSM) ; 1 ♂, 1 ♀, India, T. N., Palani Hills, Perumalmatay , 1500m, 14.VII.1990, leg. W. Thomas, slides AV4649 ♂, AV4650 ♀ Volynkin ( Coll. MWM / ZSM) ; 1 ♂, India, T. N., Shevaroy Hills, Yercaud , 1200m, 16–17.VII.1990, leg. W. Thomas (Coll. CKC) ; 2 ♂, T. N., Anthiyur , 11.V.2015, leg. H.S. Datta (Coll. NZC- ZSI) ; 2 ♂, 1 ♀, T.N., Naduvattam , 22.V.2015, leg. H.S. Datta (Coll. NZCZSI) ; 1 ♂, T.N., Alangayam , 15.V.2014, leg. H.S. Datta (Coll. NZCZSI) ; KERALA: 1 ♂, India mer., Kerala, 6 km N Munnar, 1700 m, Kodalar, Tea Estate , 10.06’N / 77.04’E, 14–15.IV.1997, leg. Schintlmeister & Siniaev, Mountain rainforest, 14°C (Coll. MWM / ZSM) ; 1 ♂, Kerala, Aralam WLS, 16.VII.2013, leg. Rahul Ranjan (Coll. NZCZSI) ; 1 ♀, Kerala, Koni , 9.VIII.2017, leg. H.S. Datta (Coll. NZCZSI) ; 1 ♀, Kerala, Attapadi , 17.VIII.2017, leg. H.S. Datta (Coll. NZCZSI) ; KARNATAKA: 1 ♀, Karnataka, Madikeri , 24.IX.2003, leg. Navneet Singh (Coll. NZCZSI) ; 1 ♂, Karnataka, Agumbe , 19.XI.2015, leg. H.S. Datta (Coll. NZCZSI) .

Remarks. 1. This taxon was treated as a junior synonym of Cyana subornata ( Walker, 1854) distributed in Sri Lanka ( Hampson 1900; Draudt 1914; Strand 1922). However, significant external and genital differences prove its species status. 2. In the original description, Swinhoe (1891) did not mention a number of specimens, but cited two localities therefore the existence of syntypes is obvious. In order to stabilize the nomenclature, we designate the specimen deposited in NHMUK and labeled as ‘type’ as lectotype.

Diagnosis. Forewing length is 13–13.5 mm in males and 15–16 mm in females. Cyana linatula is a closest relative of C. subornata ( Figs 28, 29 ), but can be easily distinguished by its inner black edging of the antemedial line and outer black edging of the postmedial line, whereas in C. subornata both lines are pure red. The male genitalia of C. linatula differ from those of C. subornata ( Fig. 174 ) by the larger ventral subbasal diverticulum, the larger dorsal medial diverticulum, and the presence of a cluster of small spinules on the tip of the distal diverticulum. The female genitalia of C. linatula differ from those of C. subornata ( Fig. 247 ) by their broader ostium bursae, more strongly rugose posterior section of corpus bursae, and more robust spinulose scobination of the appendix bursae.

Distribution. India (Rajasthan, Meghalaya, Maharashtra, Tamil Nadu, Karnataka, Kerala) ( Singh et al. 2014, as C. subornata ). The record for the Andaman Islands ( Swinhoe 1891) belongs to C. rudloffi .

Figures

FIGURES 28–38. Cyana spp.: adults. 28, C. subornata, ♂, Sri Lanka (CKC); 29, ditto, holotype ♀, Sri Lanka (©NHMUK); 30, C. linatula, ♂, India, Tamil Nadu (CKC); 31, ditto, ♀, India, Tamil Nadu (CKC); 32, ditto, lectotype ♀, India, Maharashtra (©NHMUK); 33, C. obliquilineata, holotype ♂, India, Sikkim (©NHMUK); 34, ditto, ♂, India, Meghalaya (MWM/ZSM); 35, ditto, ♂, Thailand (CKC); 36, ditto, ♀, India, Meghalaya (MWM/ZSM); 37, C. rudloffi, holotype ♂, India, M. Andaman Isl. (MWM/ZSM); 38, ditto, paratype ♀, India, M. Andaman Isl. (MWM/ZSM).

FIGURES 173–175. Cyana spp.: male genitalia. 173, C. pudens, W Malaysia, slide MWM 35685 Volynkin; 174, C. subornata, Sri Lanka, slide AV4653 Volynkin; 175, C. linatula, India, Tamil Nadu, slide MWM 34510 Volynkin.

FIGURES 246–251. Cyana spp.: female genitalia. 246, C. pudens, Malaysia, slide MWM 35686 Volynkin; 247, C. subornata, Sri Lanka, slide NHMUK010315746 Volynkin (©NHMUK); 248, C. linatula, India, Tamil Nadu, slide AV4650 Volynkin; 249, C. obliquilineata, India, Meghalaya, slide MWM 35693 Volynkin; 250, C. rudloffi, paratype, India, M. Andaman Isl., slide MWM 35679 Volynkin; 251, C. dudgeoni, India, West Bengal, slide MWM 34416 Volynkin.