Ecpyrrhorrhoe rufipicta (Butler, 1880) Xiang & Chen & Chen & Duan & Zhang, 2022

Xiang, Lanbin, Chen, Kai, Chen, Xiaohua, Duan, Yongjiang & Zhang, Dandan, 2022, A revision of the genus Ecpyrrhorrhoe Huebner, 1825 from China based on morphology and molecular data, with descriptions of five new species (Lepidoptera, Crambidae, Pyraustinae), ZooKeys 1090, pp. 1-44 : 1

Ecpyrrhorrhoe rufipicta (Butler, 1880) comb. nov.

Figs 9 , 26 , 41

Asopia rufipicta Butler, 1880: 682.

Paliga rubicundalis Warren, 1896: 96. Syn. nov.

Diagnosis.

Within the genus, E. rufipicta resembles E. fimbriata (Moore, 1886) in having nearly the same forewing length, yellow wings bearing brown markings and an almost indistinct, brown subterminal band (Fig. 9 ). However, it can be differentiated from E. fimbriata by more dentated and relatively thick postmedial line on both wings, in the male genitalia (Fig. 26 ) by the nearly oval valva, the thumb-shaped dorsal sella, the triangular ventral sella bearing several spines, the longer and strongly sclerotized arms of the juxta, and two long and pointed spines located on anellus.

Redescription

(Fig. 9 ). Head. Frons yellow, with lateral white bands. Vertex pale yellow. Labial palpus yellow, contrastingly white at base ventrally. Maxillary palpus yellow, white terminally. Thorax. Dorsal side yellow, and ventral side white; tegula yellow, with base brown. Wings. Forewing length: 9.0-12.0 mm. Wings yellow, with brown markings. Forewing with costal base brown; antemedial line dentated from 1/4 of costa slightly arched to 1/3 of posterior margin; orbicular stigma oblate; reniform stigma comma-shaped and thick; postmedial line dentated from 3/4 of costa to 2/5 of CuA2, then deeply dentated to 2/3 of posterior margin; subterminal band indistinct, with inner margin crenulated; fringe pale yellow. Hindwing with postmedial line brown, slightly dentated from 2/3 of M1 arched to 1/2 of CuA1, bending inward to basal 1/3 of CuA1, then dentated to near tornus; subterminal line and fringe as in forewing. Abdomen. Pale yellow dorsally, gradually brown to distal part, white ventrally.

Male genitalia

(Fig. 26 ). Uncus with basal 1/2 nearly triangular and naked. Valva with costa slightly convex and ventral margin curved, with basal part narrowed, remainder nearly oval, apex rounded; sella nearly triangular, bearing short spines on distal and inner margins, with a curved, finger-shaped dorsal projection; sacculus with middle part inflated into a triangular and setose protrusion. Juxta with base wide, distal 4/5 forming slender, long, and sclerotized arms dentate apically; anellus with two long and pointed spines (connected with distal arms of juxta in Fig. 26 ). Saccus rounded triangular. Phallus long and straight, cornuti presented as a narrow sclerite with dense and short spines.

Female genitalia

(Fig. 41 ). Anterior apophysis ~ 2.5 × length of posterior apophysis. Antrum cylindrical, tuberculate laterally on anterior end, strongly sclerotized and covered with spinules on inner wall; colliculum long and broad, narrower medially; ductus seminalis connecting to anterior end of colliculum and with a wide sclerite located opposite to colliculum; ductus bursae ~ 2.5-3 × as long as diameter of corpus bursae, basal 2/5 bearing a slim sclerite. Corpus bursae globular; rhomboid signum with maximal length> 1/2 of diameter of corpus bursae; second (posterior) signum composed of a pair of round sclerites bearing dense and long spines.

Material examined.

Type material. Asopia rufipicta : Type: 1♀, [ China:] Formosa, Pyralidae Brit. Mus. Slide No. 8682 (NHMUK). Paliga rubicundalis : Type: 1♂, [ India]: Khasis [ Khasia ] Nat. Coll., Pyralidae Brit. Mus. Slide No. 8685 (NHMUK) .

Other material examined.

[ India]: 1♂, Khasis [Khasia] Nat. Coll., NHMUK slide No. 010315123 (NHMUK) ; 1♂, Assam , NHMUK slide No. 010315163 (NHMUK); Phlippines : 1♂, Mt. Makiling, Luzon, Baker , 1917-79, Pyralidae Brit. Mus. Slide No. 19893 (NHMUK); China: Guangxi : 1♂, Miaozhai, Mt. Jinzhongshan , alt. 1450 m, 31.VII.2014, Wei Xueli, Ran Chao leg., genitalia slide No. SYSU1509; Hainan : 1♂, Baodao Village, Jiaxi Natural Reserve , 18.09°N, 109.05°E, alt. 149 m, 11.IX.2013, Xie Weicai leg., genitalia slide No. SYSU0645, molecular voucher No. LEP0038 ; 1♀, Jianling Natural Reserve , 18.87°N, 110.27°E, alt. 143 m, 8.IX.2013, Chen Xiaohua leg., genitalia slide No. SYSU0278, molecular voucher No. LEP0107 ; 1♂, Hongxin Village, Yuanmen, Baisha , 19.07°N, 109.52°E, alt. 460 m, 29.VI.2014, Cong Peixin, Liu Linjie, Hu Sha leg., genitalia slide No. ZDD12031 , molecular voucher no. LEP0062 (NKU) ; 1♀, Hongkan, Yinggeling Natural Reserve , 19.08°N, 109.50°E, alt. 508 m, 15.VI.2015, Cong Peixin, Guan Wei, Hu Sha leg., genitalia slide No. SYSU0341 (NKU) .

Distribution.

China (Guangxi, Hainan, Taiwan), India, Philippines.

Remarks.

Based on the substantial morphological similarity in the male genitalia between the types of Asopia rufipicta Butler, 1880 and Paliga rubicundalis Warren, 1896, Paliga rubicundalis is considered as a junior synonym of E. rufipicta (Butler).

Figures

Figures 3 - 12. Adults of Ecpyrrhorrhoe spp. 3 E. allochroa, sp. nov., holotype, male (Yunnan) 4 E. damastesalis, male (Guangdong) 5 E. damastesalis, male (Yunnan) 6 E. minnehaha, male (Guangdong) 7 E. minnehaha, male (Taiwan) 8 E. obliquata, male (Hainan) 9 E. rufipicta, female (Hainan) 10 E. fimbriata, male (Guangxi) 11 E. rubiginalis, female (Xinjiang) 12 E. machoeralis, type, female (Sri Lanka). Scale bars: 5.0 mm.

Figures 22 - 27. Male genitalia of Ecpyrrhorrhoe spp., with enlarged detail of juxta (right) 22 E. allochroa, sp. nov., holotype, Yunnan (genitalia slide No. CXH 12133) 23 E. damastesalis, Yunnan (genitalia slide No. SYSU 0237) 24 E. minnehaha, Jiangxi (genitalia slide No. SYSU 0271) 25 E. obliquata, Hainan (genitalia slide No. SYSU 0228) 26 E. rufipicta, Hainan (genitalia slide No. ZDD 12031) 27 E. fimbriata, Yunnan (genitalia slide No. SYSU 0281). Scale bars: 1.0 mm.

Figures 38 - 43. Female genitalia of Ecpyrrhorrhoe spp. 38 E. damastesalis, Hainan (genitalia slide No. SYSU 0247) 39 E. minnehaha, Shaanxi (genitalia slide No. SYSU 0272) 40 E. obliquata, Guangdong (genitalia slide No. SYSU 0269) 41 E. rufipicta, Hainan (genitalia slide No. SYSU 0341) 42 E. rubiginalis, Jiangxi (genitalia slide No. SYSU 0215) 43 E. machoeralis, type, Ceylon (genitalia slide No. 8680 (NHMUK )). Scale bars: 1.0 mm.