Stigmatophora (Bifurcistigma) obraztsovi Daniel, 1951

Zhang, Lu, Zhao, Tingting & Han, Huilin, 2025, A new subgenus of Stigmatophora Staudinger, 1881 (Lepidoptera, Erebidae, Arctiinae, Lithosiini) from China, with descriptions of three new species, ZooKeys 1226, pp. 303-317 : 303-317

Stigmatophora (Bifurcistigma) obraztsovi Daniel, 1951

Figs 1 , 2 , 13 , 14 , 23 Common name. 岔带痣苔蛾

Stigmatophora obraztsovi Daniel, 1951: 297, pl. 1, fig. 3.

TL.

Chekiang, “ Berge südlich Wnchow ” ( China, Zhejiang).

Material examined.

China • 3 ♂♂; Jiangxi, Jinggangshan, Liujiaping ; 3-9. VIII. 2021; H. L. Han leg.; genit. prep. no. ztt-435-1 , ztt-436-1 , ztt-437-1 ; in NEFU • 1 ♀; Nanling , 1,000–1,400 m elev., 1–6. VI. 2006; M. Wang et al. leg.; genit. prep. no. NSMT-4743 , in NSMT .

Redescription.

Adults (Figs 1 , 2 ). Forewing length 10 mm in males, 11.6 mm in female. Head and patagium orange, tegula purple-grey; antenna filiform, brownish-yellow, with a dark brown base; thorax purple-grey; abdomen camel-colored, lighter at 1 st abdominal segment. Forewing ground color brown, with orange bands along costal margin, inner, and lower margins of cell, and veins M 2 and Cu 1; band on M 2 slightly broadens, and on Cu 1, it widens toward outer margin, connecting fully with costal margin; orange band on inner margin not reaching anal angle. Hindwing ground color brownish-gray. Male genitalia (Figs 13 , 14 ). Uncus robust, nearly cylindrical, slightly curved, with a hooked apex. Tegumen weakly sclerotized, thick, ca 1.25 times length of uncus. Valva elongate, narrow, asymmetrical, covered with long hairs, and with a narrowly rounded apex. Costa smooth, slightly raised near base at 1 / 3 its length. Sacculus weakly sclerotized, broad at base, tapering towards end; ca 7 / 8 length of valva, middle third rough and band-like, with distal third separated from valva; distal sacculus process curves inward, hook-shaped. Ampulla sclerotized, elongated, with a mound-shaped base. Lamella centralis moderately sclerotized, extending from base of costa to sacculus process. Vinculum strongly sclerotized, wide V-shaped. Juxta with two kidney-shaped lateral lobes on each side, distal half densely covered with small granules, while basal half sclerotized, flat. Aedeagus robust, slightly twisted at middle, tapering towards apex. Carinal region sclerotized. Vesica membranous near base, with a granular field at middle, and a U-shaped band of stout, elongate, triangular cornuti distally. Female genitalia. (Fig. 23 ). Papillae anales covered with dense setae. Anterior and posterior apophysis almost equal in length. Ostium bursae strongly sclerotized, rough, and trapezoidal. Ductus bursae cylindrical, extremely broad, and strongly sclerotized, with its interior densely covered with small spines. Corpus bursae membranous, ovoid, rough, and densely covered with small spines that are shorter than those on ductus bursae.

Distribution.

China (Fujian, Zhejiang, Jiangxi, Hunan).

Figures

Figures 1–12. Adults of Stigmatophora spp. 1 S. (Bifurcistigma) obraztsovi, male, China (Jiangxi) 2 ditto, female, China (Nanling) 3 S. (B.) bucseki sp. nov., male, holotype, China (Guizhou) 4 S. (B.) longa sp. nov., male, holotype, China (Heilongjiang) 5 ditto, male, paratype, China (Heilongjiang) 6 S. (B.) bucseki sp. nov., female, paratype, China (Guizhou) 7 S. (Stigmatophora) micans, male, Zavkhan aimak, Mongolia (after Volynkin et al. 2018) 8 ditto, female, East Siberia, Russia (after Volynkin et al. 2018) 9 S. (Pseudomiltochrista) zolotuhini, male, India (Assam) (after Volynkin et al. 2018) 10 S. (P.) dianensis sp. nov., male, holotype, China (Yunnan) 11 ditto, male, paratype, China (Yunnan) 12 S. (P.) zolotuhini, female, holotype, Vietnam (Gia Lai) (after Volynkin et al. 2018). Scale bars: 1 cm.

Figures 13–22. Male genitalia of Stigmatophora spp. 13 S. (Bifurcistigma) obraztsovi, genit. prep. no. ztt- 436-1 14 ditto, genit. prep. no. ztt- 435-1 15 S. (B.) bucseki sp. nov., holotype, genit. prep. no. ztt- 312-1 16 ditto, paratype, genit. prep. no. ztt- 313-1 17 S. (B.) longa sp. nov., holotype, genit. prep. no. wp- 90-1 18 ditto, paratype, genit. prep. no. wp- 89-1 19 S. (Stigmatophora) micans (after Volynkin et al. 2018) 20 S. (Pseudomiltochrista) zolotuhini (after Volynkin et al. 2018) 21 S. (P.) dianensis sp. nov., holotype, genit. prep. no. ztt- 391-1 22 ditto, paratype, genit. prep. no. ztt- 390-1. Scale bars: 1 mm.

Figures 23–26. Female genitalia of Stigmatophora spp. 23 S. (Bifurcistigma) obraztsovi, genit. prep. no. NSMT- 4743 24 S. (Bifurcistigma) bucseki sp. nov., paratype, genit. prep. no. ztt- 397-2 25 S. (Bifurcistigma) micans (after Volynkin et al. 2018) 26 S. (Pseudomiltochrista) zolotuhini (after Volynkin et al. 2018). Scale bar: 1 mm.