Ecpyrrhorrhoe machoeralis (Walker, 1859) 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 machoeralis (Walker, 1859) comb. nov.

Figs 12 , 43

Scopula machoeralis Walker, 1859: 1013.

Eutectona machaeralis [sic]: Wang & Sung, 1980: 305.

Diagnosis.

Forewing length: 8.0-10.0 mm. Ecpyrrhorrhoe machoeralis can be differentiated from congeners by the antrum with anterior half narrower than posterior half.

Female genitalia

(Fig. 43 ). Anterior apophysis ~ 1.5 × length of posterior apophysis. Antrum long and tubular, with anterior half broad and slightly wrinkled, posterior half slightly narrow and as wide as colliculum; colliculum moderately long, somewhat difficult to differentiate from antrum; ductus seminalis connecting to anterior end of colliculum and with a weak sclerite located opposite to colliculum; ductus bursae ~ 2-2.5 × as long as diameter of corpus bursae, basal 2/5 bearing a slim sclerite. Corpus bursae globular; rhombic signum with maximal length <~ 1/2 length of diameter of corpus bursae; second (posterior) signum curved, with both ends bearing sparse and long spines.

Material examined.

Type material. Type: 1♀, Ceylon, genitalia slide No. 8680 (NHMUK) .

Distribution.

Sri Lanka.

Remarks.

Based on the examined material, this species only occurs in Sri Lanka, from where the type was described ( Walker 1859). However, because of the misidentifications as Ecpyrrhorrhoe machoeralis of E. damastesalis , records of the former are widely present in the literature ( Wu et al. 1977, Intachat 1998, Lin et al. 2018, Wang 1980). The reported biology of E. machoeralis needs to be confirmed.

The damaged female type material of E. machoeralis and lacks the original wing pattern because of its lack of scales, and the genital dissection is of low quality, which makes the identification and diagnosis of E. machoeralis difficult.

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 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.