Ypthima luxurians Forster, 1948

Ding, Cui-Zhen & Lang, Song-Yun, 2025, Notes on Ypthima persimilis Elwes & Edwards and its closely related species (Lepidoptera, Nymphalidae, Satyrinae), Zootaxa 5659 (1), pp. 117-126 : 121-124

Ypthima luxurians Forster, 1948

( Figs. 4 , 9D , 10D )

Ypthima conjuncta luxurians Forster, 1948 , Mitt. Münch. ent. Ges. 34: 482, pls. 32, 33: 1, 2. TL: Fukien.

Ypthima luxurians : Uémura, 2020, Bull. Toyosato Mus. Ent. 30: 7.

Ypthima evansi luxurians : Lang, 2022, Nymphalidae China 3: 143, pl. XV: fig. 22. [error ( Lang, 2022b)]

Material examined. 1 ♂, CHINA, Zhejiang, Qingyuan , 10–20.VI.2019, leg. Qing-song Wu ( LSY); photo: 1 ♂, “Holo-typus ♂ Ypthima conjuncta luxurians Forster W. Forster München / Kuatun 2300m (Fukien) 27, 40 n. Br./ 117, 40 ö. L. 7.7. 1938. H. Höne / Genital – Präparat: Gross Nr. 363/ ZFMK Lep153453” ( ZFMK).

Diagnosis. Ypthima luxurians is more closely related to Y. persimilis than to other congeners, and it can be distinguished from the latter by the combination of the following characters: 1) size much larger; 2) on the underside of both wings, the striae are more coarse, whereas they are finer and denser in Y. persimilis ; 3) on the forewing underside, the subbasal fascia is clear, whereas it is blurry in Y. persimilis ; 4) in the male genitalia, the dorsal lobe of valva ( Fig. 9D ) is more pointed than that in Y. persimilis ( Fig. 9A ).

Remarks. This species is only known from a narrow range in E. China. Uémura (2023b) recorded two females of Y. luxurians from Dayaoshan, [Jinxiu, Guangxi]; however, presence of this species in S. China requires further confirmation based on male specimens from the same area.

Distribution. China (N. Fujian, S. Zhejiang).

Figures

FIGURE 9. Male genitalia of Ypthima spp. A. Y. persimilis: a1. Yunnan, Menghai, SATY0620, LSY; a2. Yunnan, Lüchun, SATY1304, LSY; a3. Yunnan, Nanjian, SATY1305, LSY; a4. Yunnan, Lushui, SATY1307, LSY; a5. INDIA, Manipur, after Eliot (1967: f. 8); a6. BHUTAN, after Eliot (1967: f. 13); B. Y. atra: b1. Yunnan, Ximeng, SATY1071, LSY; b2. Hainan, Lingshui, SATY0623, LSY; b3. Guangxi, Jinxiu, SATY1303, LSY; b4. MYANMAR, N’mai Valley, after Eliot (1967: f. 18); b5. INDIA, Manipur, after Eliot (1967: f. 19); b6. Hainan, after Eliot (1967: f. 20); b7. “N.E. BURMA/Yunnan Exped.”, after Eliot (1967: f. 21); C. Y. taiwana stat. rev.: c1. “Y. formosana”, Taiwan, after Takáhashi (2000: f. 54); c2. “Y. formosana”, Taiwan, after Shirôzu & Shima (1979: Pl. 18: f. 2c); c3. “Y. atra taiwana”, Taiwan, Taidong, traced from Hsu et al. (2021: f. 488); c4. “Y. formosana”, Taiwan, after Eliot (1967: f. 16); c5. “Y. formosana”, Taiwan, after Eliot (1967: f. 17); D. Y. luxurians, Zhejiang, Qingyuan, SATY1187, LSY; E. Y. angustipennis: e1. Taiwan, after Takáhashi (2000: f. 55); e2. Taiwan, Taidong, traced from Hsu et al. (2021: f. 490); F. Y. microconjuncta, holotype, Guizhou, Shibing, SATY1308, CMNH.

FIGURE 10. Male androconia of Ypthima spp. A. Y. persimilis: a1. Yunnan, Menghai, ANDR0092, LSY; a2. Yunnan, Lüchun, ANDR0374, LSY; a3. ditto, ANDR0375, LSY; a4. ditto, ANDR0376, LSY; a5. ditto, ANDR0377, LSY; a6. MYANMAR, Kachin, after Uémura (2023b: f. 1m); B. Y. atra: b1. Guangxi, Jinxiu, ANDR0378, LSY; b2. Hainan, Lingshui, ANDR0102, LSY; b3. Hainan, after Uémura (2023b: f. 1k); b4. Yunnan, Ximeng, ANDR0263, LSY; b5. ditto, ANDR0379, LSY; b6. ditto, ANDR0380, LSY; b7. MYANMAR, Kachin, after Uémura (2023b: f. 1l); C. Y. taiwana stat. rev.: c1. “Y. atra taiwana”, Taiwan, after Uémura (2023b: f. 1j); c2. “Y. formosana”, Taiwan, after Takáhashi (2000: f. 51); c3. “Y. formosana”, Taiwan, after Shirôzu & Shima (1979: Pl. 52: f. 2); D. Y. luxurians: d1. Jiangxi, Mt. Wuyi, after Uémura (2023b: f. 1o); d2. Zhejiang, Qingyuan, ANDR0334, LSY; E. Y. angustipennis: e1. Taiwan, after Takáhashi (2000: f. 52); e2. Taiwan, after Uémura (2023b: f. 1p); F. Y. microconjuncta: f1. holotype, Guizhou, Shibing, ANDR0383, CMNH; f2. paratype, ditto, ANDR0384, LSY.

FIGURES 1–6. Ypthima spp., ♂, upperside (left), underside (right). 1. Y. persimilis, Yunnan, Lüchun, ANDR0376, LSY; 2. Y. atra, Yunnan, Ximeng, LSY; 3. Y. taiwana stat. rev., Taiwan, Nantou, ©ZMHU; 4. Y. luxurians, Zhejiang, Qingyuan, ANDR0334, SATY1187, LSY; 5. Y. angustipennis, Taiwan, Nantou, ©ZMHU; 6. Y. microconjuncta, paratype, Guizhou, Shibing, ANDR0384, SATY1312, LSY.