Barsine delineata ( Walker, 1854 )

Volynkin, Anton V. & Černý, Karel, 2017, On the taxonomy of the Barsine delineata species-complex (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4258 (2), pp. 138-144 : 139-142

Barsine delineata ( Walker, 1854)

( Figs 1–6 , 9, 10 , 13, 14 )

Hypoprepia ? delineata Walker, 1854 , List of the specimens of lepidopterous insects in the collection of the British Museum 2: 487 (Type locality: "Shanghai, N. China").

= Ammatho figuratus Walker, 1855 , List of the specimens of lepidopterous insects in the collection of the British Museum 3: 759 (Type locality: "North China "), syn. rev.

= Cyme chinensis C. Felder & R. Felder, 1862 , Wiener entomologische Monatschrift 6: 36 (Type locality: "Ning-po"), syn. rev.

= Ammatho fuscescens Butler, 1877 , Transactions of the Entomological Society of London 1877: 343 (Type locality: "Mongolia and Shanghai"), syn. rev.

= Miltochrista dimidiata Fang, 1991 , Sinozoologia 8: 389, 395, fig. 4 (Type locality: China, Hunan), syn. nov.

Type material examined: Holotype of Hypoprepia ? delineata Walker ( Fig. 1 ), female, handwritten yellowish label "China, Shanghai (Fortune) 54-8" / round printed label with green border ring "Type" / yellowish printed label "3. Hypoprepia ? delineata . " / white printed label with QR-code "NHMUK010604303" (Coll. NHM); holotype of Ammatho figuratus Walker ( Fig. 2 ), female, handwritten yellowish label "N. China, 52-14" / round printed label with green border ring "Type" / round handwritten label "North China" / yellowish printed label "1. Ammatho figuratus . " / white printed label with QR-code "NHMUK010604304" (Coll. NHM); holotype of Cyme chinensis Felder ( Fig. 3 ), female, handwritten grayish-brown label " Cyme chinensis Feld. " / round printed label "Felder colln." / round printed label with red border ring "Type" / whitish printed label "Rothschild Bequest B.M. 1939-1" (Coll. NHM); holotype of Ammatho fuscescens Butler ( Fig. 5 ), male, handwritten yellowish label "China, Nankow Pass, 75-40" / handwritten yellowish label " A. fuscescens Butler type" / round printed label with red border ring "Type" / white printed label with QR-code "NHMUK010604299" (Coll. NHM); photographs of the holotype of Miltochrista dimidiata Fang ( Fig. 6 ), male, Miltochrista dimidiata Fang / Holotype / IOZ(E) 208614 / 28.V.1981 / L-0046 / male (Coll. IZCAS).

Other material examined: 1 male, [ China] Kuatun , Prov. Fukien, 18.VIII., Höne (Coll. ZFMK) ; 1 male, [ China] West Tien-mu-shan, Prov. Chekiang, 25.VII.1932, H. Höne (Coll. ZFMK) ; 1 male, Shanghai, Miss. - Mus. Steyl (Coll. ZFMK) ; 1 female, Shanghai, Prov. Kiangsu, 15.VIII. [19]30 Höne (Coll. ZFMK) ; 1 male, 1 female, Kuatun (2300 m), 27.40 n.Br., 117.40 ö. L., J. Klapperich, ( Fukien ), 5–12.VI.1946 (Coll. ZFMK) ; 2 males, same locality and collector, but 9. and 14.VI.1946 (Coll. NHM) ; 1 male, Hoengshan , Prov. Hunan, 13.VI.1933, H. Höne (Coll. NHM) ; 1 male, 1 female, [ China] Omei-Shan , 3500 ft., nativ coll., VI–VII.1890 (Coll. NHM) ; 1 male, 1 female, NW China, Wei Chang, 1904 (Coll. NHM) ; 1 male, 1 female, [ China] Ichang, Mrs. Pratt coll., VII.1888 (Coll. NHM) ; 2 females, [ China] Shanghai, VI–VII.1892 (Coll. NHM) ; 1 female, China, Shanghai (Coll. NHM) ; 1 male, 1 female, [ China] Washan , 6000 ft., Pratt coll., VII.1889 (Coll. NHM) ; 1 male, Chungking , China, 4.X.1912, W.R. Brown, 1913-98 (Coll. NHM) ; 1 female, [ Taiwan] Koannansa , Formosa, X.1906, A.E. Wileman (Coll. NHM) ; 1 female, [ Taiwan] Horisha , Formosa (Coll. NHM) .

Slides AV 1827m, AV 1928 m, AV 1930 m, BMNH (E) Arct- 6477m, BMNH (E) Arct- 6479m Volynkin (males), AV1929f, AV1931f, BMNH (E) Arct-6478f, BMNH (E) Arct- 6480 f Volynkin (females).

Taxonomic notes. Hampson (1900) listed Ammatho figuratus Walker , Cyme chinensis C. Felder & R. Felder and Hypocrita rhodina Herrich-Schäffer as synonyms of delineata . The type specimens of the first two taxa described from China have no morphological differences compared to delineata ( Figs 1–3 ), and the synonymy of delineata , figuratus and chinensis is confirmed here. The type specimen of Hypocrita rhodina is not examined, but the taxon was described from Borneo where B. delineata does not occur, but another externally similar species, Barsine exclusa Butler, 1877 is distributed. Thus, Hypocrita rhodina is presumably conspecific with B. exclusa , but this question will be solved only after the examination and dissection of the type specimen of rhodina . The dark form of Barsine delineata has a dark form which strongly differs externally from the typical form, and was described as Ammatho fuscescens Butler ( Fig. 5 ). Subsequently, A. fuscescens was treated as a synonym ( Hampson 1900), form ( Reich 1937), and aberration ( Daniel 1951; as 'ab. fuscens ') of B. delineata . Later, the same dark form of B. delineata was described by Fang (1991) as a distinct species Miltochrista dimidiata Fang ( Fig. 6 ), which was transferred to Barsine by Dubatolov et al. (2012). Nevertheless, the male and female genitalia of this form ( Figs 10 , 14 ) equal to those of the typical form ( Figs 9 , 13 ). Thus here the new synonymy is established: B. delineata Walker = Miltochrista dimidiata Fang , syn. n., and the synonymy of B. delineata and Ammatho fuscescens Butler is revised.

Diagnosis. Externally a highly variable species, ground color varies from brownish red and orange brown to brownish black; forewing pattern consist of diffuse blackish brown transverse lines and longitudinal strokes in the submarginal area; the dark form have the ground color of forewing blackish, with only small orange brown fields in subbasal and antemedial areas. The male genitalia are very characteristic and readily separated from those of the other described Barsine species by the following characters: (1) the valva is very broad; medial costal extension is triangular, narrow; distal costal extension a broad lobe with curved and strongly dentate crest at dorsal margin; (2) the sacculus is broad, setose, with a short, slightly curved and apically blunt distal extension; (3) the aedeagus is long and narrow, the vesica with several small conical membranous diverticuli, one medio-lateral broad sack-like and one dorsal finger-like diverticuli with numerous small spine-like cornuti. In the female genitalia, the postvaginal plate is broad, band-like; ductus bursae is triangular, moderately sclerotized, with broad antrum; corpus bursae is ovate, with numerous small spinules in posterior section; appendix bursae is conical, membranous and laterally positioned.

Distribution. China (Gansu, Sichuan, Yunnan, Guangxi, Hubei, Hunan, Jiangsu, Jiangxi, Zhejiang, Fujian, Guangdong, Xiangan), Taiwan ( Fang 2000; Dubatolov et al. 2012).

Figures

FIGURES 1 – 8. Barsine spp.: adults. 1, B. delineata, holotype female, China, Shanghai (© NHM); 2, B. delineata, holotype of Ammatho figuratus, female, N China (© NHM); 3, B. delineata, holotype of Cyme chinensis, female, [China] (© NHM); 4, B. delineata, male, SW China, [Sichuan prov.] (© NHM); 5, B. delineata, holotype of Ammatho fuscescens, male, China, [vic. of Beijing] (© NHM); 6, B. delineata, holotype of Miltochrista dimidiata, male, China, Hunan province, Hendong (IZCAS) (Photo by Wu Chunsheng); 7, B. sublucana sp. n., holotype male, N Thailand, Chiang Mai prov. (NHM); 8, B. sublucana sp. n., paratype female, N Thailand, Chiang Mai prov. (CAV).

FIGURES 9 – 12. Barsine spp.: male genitalia. 9, B. delineata, China, Zhejiang province, West Tien-mu-shan, slide AV 1892 m Volynkin; 10, B. delineata ' f. fuscescens ', China, Guangdong province, slide AV 1930 m Volynkin; 11, B. sublucana sp. n., holotype, N Thailand, Chiang Mai prov., slide AV 2361 m Volynkin; 12, B. sublucana sp. n., paratype, N Thailand, Chiang Mai prov., slide AV 2355 m Volynkin.

FIGURES 13 – 15. Barsine spp.: female genitalia. 12, B. delineata, China, Zhejiang province, slide BMNH (E) Arct- 6478 f Volynkin (© NHM); 14, B. delineata ' f. fuscescens ', China, Shanghai, slide BMNH (E) Arct- 6480 f Volynkin (© NHM); 15, B. sublucana sp. n., paratype, N Thailand, Chiang Mai prov., slide AV 2356 f Volynkin.