Ecpyrrhorrhoe brevis Zhang & Xiang, 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 brevis Zhang & Xiang sp. nov.

Figs 16 , 32 , 47

Diagnosis.

Ecpyrrhorrhoe brevis can be distinguished from E. digitaliformis and E. celatalis in the male genitalia (Fig. 32 ) by the much more slender protrusion of the sacculus, the much thicker and straight sella, the broader arms of the juxta without a tooth-shaped process, a long, strongly sclerotized and hook-like cornutus present on the vesica, and a series of long spines standing on a long and curved base on the anellus; in the female genitalia (Fig. 47 ) by anterior end of the antrum bearing a lateral protrusion.

Description

(Fig. 16 ). Head. Frons yellow, with white lateral bands. Vertex pale yellow, sometimes whitish medially. Labial palpus dark yellow, contrastingly white at base ventrally. Maxillary palpus dark yellow, pale terminally. Thorax. Dorsal side dark yellow or yellowish brown, ventral side white. Legs white to pale yellow. Wings. Forewing length: 11.0-13.0 mm. Forewing with termen moderately oblique and apex somewhat pointed; bright yellow, markings yellowish brown; antemedial line arched from 1/4 of costa to 2/5 of posterior margin; orbicular stigma dot-shaped, sometimes indistinct; reniform stigma comma-shaped, slightly concave; postmedial line from 3/4 of costa, obliquely inward then arched to middle of CuA1, slightly dentate, then bending to 1/3 of CuA2, and finally undulated to 2/3 of posterior margin; fringe bright yellow. Hindwing bright yellow; postmedial line yellowish brown, slightly dentate and arched from 2/3 of M1 to 1/2 of CuA1 and bending inward along CuA1, then undulated to 2/3 of posterior margin; fringe as in forewing. Abdomen. Bright yellow dorsally, black on distal end; white ventrally.

Male genitalia

(Fig. 32 ). Uncus with basal half nearly triangular and naked. Valva curved and slowly tapering to rounded apex; sella thickly sclerotized, thumb-shaped, and densely setose; sacculus with distal 3/5 inflated into a broad protrusion bearing a slender finger-shaped process medially. Juxta with base wide, distal 4/5 bifid into stout and tapering, slightly curved and closely separated arms; anellus with a series of long spines standing on a long and curved base (attached to distal end of phallus in Fig. 32 ). Saccus broadly triangular. Phallus long and moderately stout, cornuti presented as a lancet-shaped sclerite connected with a hook-shaped, strong spine on apical end.

Female genitalia

(Fig. 47 ). Anterior apophysis ~ 2 × length of posterior apophysis. Antrum shortly cup-shaped, anterior end of antrum bearing a lateral thumb-shaped protrusion; colliculum very short and broad; ductus seminalis connecting to anterior end of colliculum; ductus bursae length ~ 4-5 × as long as diameter of corpus bursae, basal 1/3 bearing a slim sclerite. Corpus bursae globular; rhomboid signum with maximal length> diameter of corpus bursae; second (posterior) signum with both ends round, margin bearing sparse and long spines.

Material examined.

Type material. Holotype ♂, China: Guangdong: Heishiding, Fengkai , 5.X.2011, Tong Bo, Li Yun leg., genitalia slide No. CXH12182 (♂) (SYSBM) . Paratypes: China: Guangdong: 2♂ 1♀, same data as holotype, genitalia slide No. SYSU0234(♂), SYSU0236(♂), CXH12213 (♀, molecular voucher No. LEP0398) ; 1♂, Heishiding, Fengkai , 15.VI.2009, Han Xiaolei leg., genitalia slide No. SYSU1532 ; 1♀, Heishiding, Fengkai , 25.V.2013, Chen Xiaohua leg., genitalia slide No. SYSU1533 ; 1♂, Yanshuitian, Fengkai , 6.X.2011, Tong Bo leg., genitalia slide No. SYSU0253 ; 1♂, Mt. Danxiashan, Shaoguan , 25.04°N, 113.64°E, alt. 96 m, 6.VI.2012, Li Jinwei leg., genitalia slide No. SYSU0212, molecular voucher No. LEP0036 . Guangxi: 1♂, Yangmeiao, Mt. Jiuwandashan , 25.19°N, 108.65°E, alt. 1183 m, 22.VII.2015, Chen Kai leg., genitalia slide No. SYSU0268 .

Distribution.

China (Guangdong, Guangxi).

Etymology.

The specific name is derived from the Latin Ecpyrrhorrhoe brevis (= short), referring to the short arms of juxta in the male genitalia.

Figures

Figures 13 - 21. Adults of Ecpyrrhorrhoe spp. 13 E. rosisquama, sp. nov., holotype, male (Yunnan) 14 E. exigistria, sp. nov., holotype, male (Yunnan) 15 E. digitaliformis, male (Guizhou) 16 E. brevis, sp. nov., paratype, male (Guangdong) 17 E. puralis, male (Hainan) 18 E. rubellalis, male (Hainan) 19 E. longispinalis, sp. nov., holotype, male (Hunan) 20 E. celatalis, male (Yunnan) 21 E. biaculeiformis, female (Anhui). Scale bars: 5.0 mm.

Figures 28 - 33. Male genitalia of Ecpyrrhorrhoe spp., with enlarged detail of juxta (right) 28 E. rubiginalis, Shanxi (genitalia slide No. SYSU 0245) 29 E. rosisquama sp. nov., holotype, Yunnan (genitalia slide No. SYSU 0246) 30 E. exigistria sp. nov., holotype, Yunnan (genitalia slide No. ZDD 12044) 31 E. digitaliformis, Zhejiang (genitalia slide No. CXH 12193) 32 E. brevis sp. nov., holotype, Guangdong (genitalia slide No. CXH 12182) 33 E. puralis, Guangxi (genitalia slide No. SYSU 0254). Scale bars: 1.0 mm.

Figures 44 - 49. Female genitalia of Ecpyrrhorrhoe spp. 44 E. rosisquama sp. nov., paratype, Yunnan (genitalia slide No. SYSU 0262) 45 E. exigistria sp. nov., paratype, Jiangxi (genitalia slide No. SYSU 0276) 46 E. digitaliformis (genitalia slide No. SYSU 0274) 47 E. brevis sp. nov., paratype, Guangdong (genitalia slide No. SYSU 1533) 48 E. puralis, Jiangxi (genitalia slide No. SYSU 0216) 49 E. rubellalis, Hainan (genitalia slide No. SYSU 0243). Scale bars: 1.0 mm.