Cyana detrita Walker, 1854

(Figs 1, 2, 161, 234)

Cyana detrita Walker, 1854, List of the specimens of lepidopterous insects in the collection of the British Museum 2: 529 (Type locality: [E Bangladesh or NE India, S Meghalaya] “Silhet”).

= Barsine suffundens Walker, 1864 [1865], List of the specimens of lepidopterous insects in the collection of the British Museum 31: 250 (Type locality: “South Hindostan”).

= Lyclene tripunctata Reich, 1935, Internationale entomologische Zeitschrift 29 (23): 265, fig. 1 (Type locality: “Simla, Punjab, 2500 m ”), syn. nov.

Type material examined. Lectotype of Cyana detrita: ♀, handwritten label “Silhet 47–58.” / printed label “ DETRI- TA.” / printed round label with a green circle “Type” / printed label with a unique identifier “NHMUK010597966” (Coll. NHMUK); lectotype of Barsine suffundens: ♀ without abdomen, handwritten label “South India ” / handwrit- ten label “ Barsine suffundens ” / handwritten label “A Walker’s type ♀ Barsine suffundens ” / printed label “466” / “TYPE (printed) LEP.: No. 424 Barsine suffundens Walker (handwritten) HOPE DEPT. OXFORD (printed)” (Coll. OUMNH).

Other material examined. JAMMU & KASHMIR: 2 ♂, 2 ♀, India, J & K, Kaschmir, Gund, 2200 m, 29.VII.1987, leg. W. Thomas (Coll. MWM / ZSM); PUNJAB: 1 ♂, 1 ♀, Punjab, 1920–356, slide BMNH(E) Arct. - 2160 (Coll. NHMUK); 1 ♂, same data, slide 2077 ♂ Volynkin (Coll. ZFMK); HIMACHAL PRADESH: 1 ♀, NW India, Kasauli, H.J.W. Barrow, 14.VIII.1899, 1907–44 (Coll. NHMUK); 1 ♂, 1 ♀, [Kullu, Sultanpur] Sultanpore, Kulu, Capt. J. Young coll. 1889 (Coll. NHMUK); 2 ♂, 1 ♀, Kangra (Hocking) 86–69 (Coll. NHMUK); 1 ♀, India H. P., Kandaghat, 1500m, 25.VI.1975, leg. W. Thomas (Coll. MWM / ZSM); 1 ♂, Himachal Pradesh, Narkanda, 24.VI.1993, leg. APS Kaleka (Coll. NZCZSI); 1 ♀, Himachal Pradesh, Sarahan, 30.VI.1995, leg. APS Kaleka (Coll. NZCZSI); UTTARAKHAND: 6 ♂, 7 ♀, India, Bhimtal, 1500 m, 11–20.VI.1975, leg. W. Thomas, slide MWM 34421 (♂) Volynkin (Coll. MWM / ZSM); 3 ♂, 3 ♀, India, Nainital, 2100 m, 14–20.VI.1975, leg. W. Thomas (Coll. MWM / ZSM); 1 ♀, same data, slide AV2078 ♀ Volynkin (Coll. ZFMK); 1 ♂, 3 ♀, India, Himalaya, District Uttarkashi, Gangani, 14–19.VI.1981, 1300 m, leg. C. Holzschuh (Coll. MWM / ZSM); 5 ♂, India sept., Kumaon- Himalaya, Distr. NainiTal, BhimTal, 1500 m, leg. F. Smetacek, 13.VIII.75; 10.IX.77; 4.IX.78; 20.VI.79; 23.IX.1979 (Coll. MWM / ZSM); 4 ♀, same locality and collector, 10.IX.77; 27.VI.78; 13.VI.79; 29.VI.79 (Coll. MWM / ZSM); 5 ♂, 1 ♀, India, Kumaon-Himalaya, Distr. NainiTal, BhimTal, 1500 m, 10.V.1971, leg. de Freina, Himalaya Ex- pedition, 10.VI.71 (2 ♂); 20.VI.71 (1 ♀); 21.VI.71 (1 ♂); 27.VI.71 (2 ♂) (Coll. MWM / ZSM); 1 ♂, 3 ♀, Bhimtal, N.- India, 1600 m, 24.VIII.–3.IX.80, Hauenstein (Coll. MWM / ZSM); SIKKIM: 1 ♀, Sikkim, Mangpo, VII.[18]86, H.J. Elwes (Coll. NHMUK); WEST BENGAL: 2 ♂, India WB, Darjeeling, 2100 m, 28.VIII.–1.IX.1988, leg. W.

Thomas, slide 34422 (♂) Volynkin (Coll. MWM / ZSM); 1 ♂, 3 ♀, India W.B., Darjeeling, 5 km above Rambi, 800 m, 21.VII.1990, leg. W. Thomas (Coll. MWM / ZSM); MEGHALAYA: 1 ♂, Khasia Hills / Moore Coll. 94–106 (Coll. NHMUK).

Remarks. 1. We did not find the holotype of Lyclene tripunctata in ZFMK collection. However, its black and white photo is provided in the original description (Reich 1935), and this taxon is obviously conspecific with C. detrita. 2. In the original descriptions of Cyana detrita and Barsine suffundens, Walker (1854; 1864 [1865]) did not mention a number of specimens, therefore the existence of syntypes is possible. In order to stabilize the nomenclature, we designate the specimens labeled as ‘types’ as lectotype.

Diagnosis. Forewing length is 11.5–13 mm in males and 16–17.5 mm in females. Cyana detrita is an easily recognizable species differing from other congeners by its grayish brown and diffuse forewing pattern. In the male genitalia, C. detrita differs clearly from other Indian species of Cyana by its bulging, dentate and heavily sclerotized distal part of aedeagus. Among Asian species, this feature is found only in C. guttifera and C. intercomma Černý, 2009, but C. detrita differs from it by its narrower valva and the vesica having no elongated diverticula, spinules and cornuti, whereas in C. intercomma the vesica bears three clusters of robust spinules, and in C. guttifera there is a large and dentate cornutus. The female genitalia are characterized by their broad antrum and dorso-ventrally flattened and heavily sclerotized anterior section of corpus bursae.

Distribution. North and North-East India (Jammu & Kashmir, Himachal Pradesh, Punjab, Uttarakhand, Sikkim, West Bengal, Meghalaya, Nagaland) (Hampson 1900; Reich 1935; Smetacek 2008; Singh et al. 2014), Nepal (Kishida 1993; 1994; 1998); Bangladesh (Walker 1854), China (Tibet) (Fang 2000, as detriata, missp.). The record for South Hindostan (Walker 1864) is doubtful and needs confirmation.