Barsine deliciosa Volynkin & Černý, 2016

Volynkin, Anton V. & Černý, Karel, 2016, Barsine deliciosa, a new species from China (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4200 (1), pp. 181-191 : 182-186

Barsine deliciosa Volynkin & Černý , sp. nov.

( Figs 5, 6 , 19, 20 , 28 )

Type material. Holotype ( Figs 5 , 19 ): male, [ China, Shaanxi] Tapaishan im Tsinling , Sued-Shensi. Ca. 1700 m, 2.VII.1936, H. Höne, slide AV 2005m Volynkin (Coll. ZFMK) . Paratypes: 2 males, 4 females, same locality, but 26.VI., 30.VI., 1.VII., 9.VII., 23.VII., 10.VIII.1936 ; 1 male, 3 females, [ China, Shanxi] Mien-shan (Prov. Shansi), Obere Höhe ca. 2000 m, H. Höne, 27.VI., 1.VII., 8.VII., 9.VII.1937, slides AV 1896m and AV1897f Volynkin (all paratypes in coll. ZFMK) .

Diagnosis. The new species have a separate position within the genus and forms a different species group. By wing pattern and relatively small size, B. deliciosa sp. nov. ( Figs 5, 6 ) more closely resembles Barsine delicia Swinhoe, 1891 ( Figs 7–10 , 23 , 31 ), and also Barsine conicornutata ( Holloway, 1982) ( Figs 11, 12 , 24 , 25 , 32 ), Barsine lucibilis Swinhoe, 1892 ( Figs 13, 14 , 26 , 33 ) and Barsine striata ( Bremer et Grey, 1852) ( Figs 15, 16 , 27 , 34 ) belonging to other species groups, and differs clearly from them by the genitalia structure. Externally, B. deliciosa sp. nov. differs from B. delicia Swinhoe, 1891 by the more diffuse pattern of transverse lines, larger and more diffuse strokes between veins in submarginal area of forewing, medial transverse line not reaching postmedial transverse line at the forewing costa, and less pink hindwings; from B. conicornutata differs by the weaker transverse lines and strokes between veins and medial transverse line not reaching postmedial transverse line at the forewing costa; from Barsine lucibilis Swinhoe, 1892 differs by the smaller size, more diffuse pattern, longer strokes between veins in the submarginal area of forewing, and pinkish hindwings; from B. striata differs by the smaller size, the antemedial and medial lines almost connected at medial part, the longer dark strokes between veins in the submarginal field. According the genitalia structure (structure of distal saccular extension, diverticula configuration and bilobate 2nd medial diverticulum), a related species of B. deliciosa sp. nov. is Barsine flammealis Moore, 1878 ( Figs 17 , 21 , 29 ) differing strongly from it by the much larger size, larger red spots and stronger expressed dark grey elements of forewing pattern and darker pinkish hindwings. In the male genitalia, B. deliciosa sp. nov. ( Figs 19, 20 ) differs from B. flammealis ( Fig. 21 ) by its shorter uncus, narrower juxta, narrower and not curved medial costal extension, much larger basal saccular extension, shorter dorsal lobe of distal saccular extension, somewhat smaller 1st medial diverticulum, narrower 3rd medial diverticulum with smaller number of cornuti, and broader distal sclerotized plate of vesica; the male genitalia of B. deliciosa sp. nov. also resemble those of B. linga Moore, 1859 ( Figs 18 , 22,30) by the bilobate 2nd medial diverticulum, but differ clearly by the broader uncus, smaller and narrower medial costal extension, stronger basal saccular extension, longer apical lobe of distal saccular extension, shorter 1st medial diverticulum, and 3rd medial diverticulum shorter and directed basally. The female genitalia of B. deliciosa sp. nov. ( Fig. 28 ) differ from those of B. flammealis ( Fig. 29 ) by the narrower antrum and posterior part of ductus bursae, smaller corpus bursae, and larger appendix bursae; from B. linga ( Fig. 30 ) differ by the narrower apophyses anteriores, narrower ostium bursae with smaller folds, much narrower ductus bursae, smaller corpus bursae with smaller signum and smaller appendix bursae.

Description. Adult ( Figs 5, 6 ). Length of forewing 12–13 mm in males and 15–16 mm in females. Male antennae ciliate, female antennae filiform. Body ochreous yellow. Male forewing slightly narrower than that of female. Forewing background bright yellow; pattern consists of long red strokes between veins in subbasal and medial areas, red lines on veins in submarginal and marginal areas, two black dots at the wing base on anterior and posterior wing margins, one black dot subbasally, crosslines presented as rows of diffuse black dots on veins, and diffuse black strokes of different length between veins in submarginal area. Antemedial line strongly curved; medial line almost straight, connected with postmedial line at the wing costa; postmedial line arcuate. Cilia dark yellow. Hindwing pinkish ochreous in male and pale pink in female; cilia ochreous pinkish. Male genitalia ( Figs 19, 20 ). Uncus long, narrow, laterally flattened, moderately broadened medially, with small pointed claw-like tip. Tuba analis broad, membranous; scaphium narrow, moderately sclerotized; subscaphium as broad scobinate area. Tegumen moderately long and broad; juxta long, broadly X-like; vinculum short, V-like. Valva moderately broad, medially broadened; medial costal extension moderately long, narrow; distal costal extension reduced; apical lobe of valva short, narrow, apically rounded; sacculus strongly sclerotized, its basal extension with broad base, long, strongly curved, apically pointed; distal saccular extension long, narrow, well separated from the apical lobe of valva and protruding over its tip, with broad and short triangular dorsal extension. Aedeagus large, narrow, slightly curved; vesica broad, its structure typical for Barsine s. str. Basal diverticulum small, globular; 1st medial diverticulum moderately long, sack-like, distally with weak scobination; 2nd medial diverticulum bilobate, covered by strong short cornuti of different size; 3rd medial diverticulum moderately long, slightly curved, with broad base, distally narrowed, with strong short cornuti of different size; 4th medial diverticulum small, globular, with several short cornuti; 5th medial diverticulum short, broad, with large strong cornuti of different size; basal plate of ductus ejaculatorius very broad, triangular, strongly sclerotized. Female genitalia ( Fig. 28 ). Papillae anales broad, rectangular with rounded edges; apophyses anteriores and posteriores of approximately equal length, long and thin. Ostium bursae broad; antrum broad, slightly rugose; ductus bursae strongly sclerotized, flattened dorso-ventrally, anteriorly broadened, its anterior membranous sections short. Corpus bursae globular, with strong rugose sclerotization and scobination posteriorly, with one large rounded signum and weaker sclerotized long wavy bandlike signum; anterior section of corpus bursae membranous with weak scobination. Appendix bursae strongly sclerotized, conical, situated latero-dorsally curved.

Distribution. The species is known from North China (Shanxi and Shaanxi provinces).

Etymology. The species name refers to its external resemblance with B. delicia .

Notes. Because of external resemblance of B. deliciosa , B. delicia and B. conicornutata , distribution of these three species is unclear. Earlier, B. delicia was known from the Himalaya only (North-East India) (Swinhoe 1891; Strand 1922; Holloway 1982; Singh et al. 2014), but study of genitalia of ‘ conicornutata’ specimens from North Thailand (Nan province) showed clearly their belonging to delicia and not conicornutata , the vesici of the two species have a very characteristic structure ( Figs 23–25 ), and confusion of delicia and conicornutata is impossible after dissection. B. conicornutata is known certainly from Malay Peninsula, Sumatra Island, Central and South Thailand ( Holloway 1982; Černý & Pinratana 2009; Buscek 2012). Fang (2000) reported conicornutata (as ‘ cornicornutata’) for China, Černý & Pinratana (2009) reported conicornutata (as ‘ cornicornutata’) for Thailand, Vietnam and China, and Bucsek (2012) reported it also as ‘ cornicornutata ’ besides peninsular Malaysia, Sumatra and Thailand for Vietnam, China, Laos and Borneo, but most likely all the reports for China belong to deliciosa or delicia , and the reports for Vietnam and Laos belong to species of B. striata species-group (is under revision by authors). Holloway (2001) did not report conicornutata for Borneo therefore the report for Borneo by Bucsek (2012) is doubtful and most likely belongs to externally close B. lucibilis . Thus, the distribution pattern of B. conicornutata-delicia species pair north of Malay Peninsula needs revision.

Figures

FIGURES 5 – 12. Barsine spp.: adults. 5, B. deliciosa, holotype male, China, Shaanxi prov. (ZFMK); 6, B. deliciosa, paratype female, China, Shanxi prov. (ZFMK); 7, B. delicia, holotype male, NE India, Khasi Hills (© NHM, coll. NHM); 8, B. delicia, B. delicia, female, India, Meghalaya, Khasi (ZFMK); 9, B. delicia, male, N Thailand, Nan prov. (CAV); 10, B. delicia, female, same locality (CAV); 11, B. conicornutata, male, Indonesia, N Sumatra (CAV); 12, B. conicornutata, female, Singapore (© NHM, coll. NHM).

FIGURES 19 – 21. Barsine spp.: male genitalia. 13, B. deliciosa, holotype, China, Shaanxi prov., slide AV 2005 m Volynkin; 14, B. deliciosa, paratype, China, Shanxi prov., slide AV 1896 m Volynkin; 15, B. flammealis, C Vietnam, Quang Ngai prov., slide AV 2304 m Volynkin.

FIGURES 28 – 34. Barsine spp.: female genitalia. 28, B. deliciosa, paratype, China, Shanxi prov., slide AV 1897 f Volynkin; 29, B. flammealis, C Vietnam, Kon Tum prov., slide AV 2342 f Volynkin; 30, B. linga, Sikkim, slide BMNH Arct. - 2874 Volynkin; 31, B. delicia, India, Meghalaya, Khasi, slide AV 1992 f Volynkin; 32, B. conicornutata, Singapore, slide BMNH Arct. - 6581 Volynkin; 33, B. lucibilis, Borneo, BMNH Arct. - 4269; 34, B. striata, China, slide AV 1785 f Volynkin.

FIGURES 22 – 24. Barsine spp.: male genitalia. 22, B. linga, Nepal, AV 1727 m Volynkin; 23, B. delicia, N Thailand, Nan prov., slide AV 2332 m Volynkin; 24, B. conicornutata, W Sumatra, slide AV 2335 m Volynkin.

FIGURES 25 – 27. Barsine spp.: male genitalia. 25, B. conicornutata, holotype, Malaysia, slide BMNH Arct. - 2874 Holloway; 26, B. lucibilis, Borneo, Sarawak, slide AV 2336 m Volynkin; 27, B. striata, China, Guangdong prov., slide AV 1808 m Volynkin.

FIGURES 13 – 18. Barsine spp.: adults. 13, B. lucibilis, male, Borneo, Sarawak (CAV); 14, B. lucibilis, female, Borneo, (© NHM, coll. NHM); 15, B. striata, male, Japan, Omuroyama (© NHM, coll. NHM); 16, B. striata, male, Japan, Saitama Pref. (© NHM, coll. NHM); 17, B. flammealis, male, Nepal, Katmandu Valley (ZFMK); 18, B. linga, holotype male, NE India, Darjeeling (© NHM, coll. NHM).