Ecpyrrhorrhoe rosisquama Xiang & 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 rosisquama Xiang & Zhang sp. nov.

Figs 13 , 29 , 44

Diagnosis.

This species differs from all other species of the genus by the yellow forewing bearing rosy markings and mottled covering of rosy scales, the rosy markings on tornal area of the hindwing (Fig. 13 ), in the male genitalia (Fig. 29 ) by the longer and more strongly sclerotized arms on the juxta, with two groups of short and pointed spines on the anellus, in the female genitalia (Fig. 44 ) by the smaller and less developed antrum, and the smaller corpus bursae.

Description

(Fig. 13 ). Head. Frons and vertex yellow, frons with lateral white bands. Labial palpus yellow or orange, contrastingly white at base ventrally. Maxillary palpus yellow, pale terminally. Frons, vertex, labial and maxillary palpi sometimes mixed with rosy scales. Thorax. Dorsal side and tegula yellow, mixed with rosy scales; ventral side white. Wings. Forewing length: 10.0-12.0 mm. Forewing with termen weakly oblique; ground color yellow, with mottled covering of rosy scales forming indistinct markings except the totally rosy costa; antemedial line blurred, from 1/5 of costa oblique to 1/3 of 1A, then dentate to 2/5 of posterior margin; orbicular stigma nearly square; reniform stigma comma-shaped, thick and concave; postmedial line blurred, arched from 3/4 of costa to base of CuA2, connected with oval-shaped patch posterolateral of cell, and finally dentated to 2/3 of posterior margin; subterminal band with anterior part broad, inner margin serrated; fringe with basal half dark rosy and distal half pale yellow. Hindwing pale yellow; postmedial and subterminal lines rosy and serrated, but only with posterior part distinct; terminal line sometimes rosy; fringe as in forewing, with apex and tornus pale yellow. Underside: costal and terminal areas grey; reniform stigma and patch posterolateral of cell grey and distinct; postmedial line grey and faint. Abdomen. Yellowish to yellowish brown dorsally, the first two segments whitish, posterior margin of each segment paler. Dirty white ventrally.

Male genitalia

(Fig. 29 ). Uncus with basal 1/4 nearly triangular and naked. Valva slightly curved, of almost even width, apex obtusely rounded; sella thick and setose, thumb-shaped, bearing short spines on distal margin, extending ventrad; sacculus with distal 3/4 inflated into a broad and round protrusion. Juxta with base wide, distal 4/5 bifid into slender, long, and sclerotized arms; anellus with two groups of short and pointed spines (connected with distal arms of juxta in Fig. 29 ). Saccus rounded triangular. Phallus rather stout and straight, with interlaced spicules on vesical and cornuti present as a sclerite with dense and long spines.

Female genitalia

(Fig. 44 ). Anterior apophysis ~ 2 × the length of posterior apophysis. Antrum cup-shaped, weakly sclerotized, slightly wrinkled medially; colliculum moderately long and broad; ductus seminalis inserting to anterior end of colliculum and with a wide sclerite and a nearly semi-circular, strong sclerotized sclerite located opposite colliculum; ductus bursae ~ 3-4 × diameter of corpus bursae, basal half bearing a slim sclerite. Corpus bursae globular; rhombic signum with maximal length <1/2 of diameter of corpus bursae; second (posterior) signum composed of a pair of narrow and pointed sclerites without spines.

Material examined.

Type material. Holotype ♂, China: Yunnan: Baihualing Natural Reserve, Baoshan , 24.30°N, 98.80°E, alt. 1535 m, 20.IV.2015, Chen Kai, Duan Yongjiang leg., genitalia slide No. SYSU0246, molecular voucher No. LEP0020 (SYSBM) . Paratypes: Guangxi: 1♀, Songshuping, Mt. Jinzhongshan , alt. 940 m, 28.VII.2014, Wei Xueli, Ran Chao leg. ; Yunnan: 5♂ 7♀, Baihualing Natural Reserve, Baoshan , alt. 1520 m, 11, 13.VIII.2007, Zhang Dandan leg. , genitalia slide No. SYSU0209 (♂), SYSU0229 (♂), SYSU0262 (♀) ; 1♀, Baihualing Natural Reserve, Baoshan , 25.30°N, 98.80°E, alt. 1473 m, 7.VIII.2014, Teng Kaijian, Liu Shurong, Rong Hua leg. (NKU) ; 1♀, Hanlongzhai, Baihualing Natural Reserve, Baoshan , 25.31°N, 98.80°E, alt. 1616 m, 11.V.2021, Jin Mengjie, Guo Muyu, Fu Haiyun leg. ; 1♂, Taizhong Village, Jingdong , 24.51°N, 100.94°E, alt. 1395 m, 14.IV.2015, Chen Kai, Duan Yongjiang leg. ; 2♀, Tuanshan Village, Liming, Ninger , alt. 1162 m, 29.IV.2020, Xiang Lanbin leg.

Distribution.

China (Guangxi, Yunnan).

Etymology.

The specific name is derived from the Latin rose - (= rosy) and squama (= scales), referring to rosy scales on wings.

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.