Description of a new species of the Loxerebia saxicola (Oberthür, 1876) - complex from Guizhou, Southwest China (Lepidoptera: Nymphalidae: Satyrinae) Author Wang, Xue-Jian School of Biological Sciences, Guizhou Education University, 550018, Guiyang, Guizhou, China. Author Lang, Song-Yun 0000-0001-5096-7082 Chongqing Museum of Natural History, 400700, Beibei, Chongqing, China. text Zootaxa 2024 2024-11-18 5538 4 391 400 http://dx.doi.org/10.11646/zootaxa.5538.4.7 journal article 305656 10.11646/zootaxa.5538.4.7 bb203895-2b5c-41e3-bd06-7b0ac49b9a5c 1175-5326 14239623 CF61C374-CF98-48E0-836D-28375926AB81 Loxerebia zangkena Lang & Wang sp. nov. ( Figs. 4–6 , 10–14 , 21–23a ) Type material. Holotype ♂ , CHINA : Guizhou , Guiyang , Wudang , Xiangzhi-gou , 1100 m , 23.IX.2024 , leg. X. J. Wang ( CMNH ) ; Paratypes : 1 ♂♂ 6 ♀♀ , CHINA : Guizhou , Guiyang , Wudang , Xiangzhi-gou , 1100 m , 30.IX– 3.X.2023 , leg. X. J. Wang ( LSY ) ; 22 ♂♂ 1 ♀ , CHINA : Guizhou , Guiyang , Wudang , Xiangzhi-gou , 1100 m , 18– 23.IX.2024 , leg. X. J. Wang ( LSY ) ; 8 ♂♂ , CHINA : Guizhou , Guiyang , Wudang , Balagu , 1200 m , 24.IX.2024 , leg. X. J. Wang ( LSY ) . Diagnosis. The new species can be easily distinguished from its closely related species, viz. Loxerebia albipuncta ( Figs. 1–3 , 7–9 , 15–16 , 21–23b ) and L. chouchuensis ( Figs. 17–18 , 21–23c ), by the combination of the following characters: 1) On the forewing upperside, the subapical ocellus is placed more oblique inwards than that of L. albipuncta and L. chouchuensis , especially in males; 2) On the forewing upperside in male, the subapical ocellus is larger; 3) On the forewing upperside in male, the reddish area below the ocellus is much broader and tapering downwards, whereas it is nearly equal width throughout in L. albipuncta and L. chouchuensis ; 4) On the forewing upperside in male, the androconial patch ( Fig. 21a ) is obviously smaller and restricted in the discal area; 5) On the hindwing underside, the discal fascia is obscure, whereas it is clear especially in female in L. albipuncta and L. chouchuensis ; 6) On the hindwing underside in male, the discal area is greyish white as in L. albipuncta , whereas it is strongly tinged with earth yellow in L. chouchuensis ; 7) On the hindwing underside in female, the anal ocellus in the space 2 is reduced as a white dot as in L. chouchuensis , whereas it is often well developed in L. albipuncta . The male genitalia and androconia ( Figs. 22a , 23a ) are indistinguishable from the two closely related congeners. Description. Male ( Figs. 4–6 , 13 , 21a ). Forewing length (FWL): 26.5–27.5 mm. Upperside: ground colour dark blackish brown. Forewing: subapical ocellus black, oval and obliquely placed, bipupillate with two whitish spots in the spaces 4 and 5 respectively and encircled by an orange ring; its lower half surrounded by a wide reddish cloudy area extended down to the space 2; the androconial patch restricted in the discal area and extended from vein 1b up to vein 5, present as a grater like texture with dense minute striae. Hindwing: anal ocellus well present in the space 2, with a single whitish pupil encircled by a reddish ring. Underside: ground colour greyish white, thinly and densely striated with black. Forewing: subapical ocellus alike that on the upperside but with the ring yellow instead of orange; the area in cell and from upper half of space 1b to space 5 and below the ocellus deep red, traversed by an oblique deep reddish-brown fascia beyond the cell. Hindwing: the postdiscal series present as a series of tiny whitish dots in the spaces 1b to 6; the discal fascia deep brown, sharply protruding towards the termen, but often very obscure. Androconia ( Figs. 22a ). The lamina long and narrow, nearly equally width throughout; the distal stalk short. Male genitalia ( Figs. 23a ). Tegumen: small, normal helmet-shaped. Uncus: long and robust, its apical half weakly bent downwards. Gnathos: slender, weakly bent upwards. Saccus: present as a short tube. Valva: as long as the uncus, nearly parallelogram in shape, its dorsal ridge near the apex swollen and serrated; the apex weakly protruding forwards. Aedeagus: strongly bent upwards with almost a right angle, its surface smooth. FIGURES 1–6. Loxerebia spp. 1 –3. L. albipuncta (Leech) : 1. ♂, Hubei, Wufeng, SATY0820, ANDR0153; 2. ♂, Hubei, Enshi, SATY0822, ANDR0155; 3. ♂, Hunan, Wulingyuan, SATY0719, ANDR0142; 4–6. L. zangkena Lang & Wang sp. nov. : 4. holotype, ♂, Guizhou, Wudang, SATY1342; 5. paratype, ♂, Guizhou, Wudang, SATY1343; 6. paratype, ♂, Guizhou, Wudang. FIGURES 7–12. Loxerebia spp. 7 –9. L. albipuncta (Leech) : 7. ♀, Hubei, Wufeng; 8. ♀, Hubei, Wufeng, SATY0840; 9. ♀, Hubei, Enshi; 10–12. L. zangkena Lang & Wang sp. nov. : 10. paratype, ♀, Guizhou, Wudang; 11. paratype, ♀, Guizhou, Wudang; 12. paratype, ♀, Guizhou, Wudang. FIGURES 13–20. Loxerebia spp. 13–14. L. zangkena Lang & Wang sp. nov. : 13. paratype, ♂, Guizhou, Wudang; 14. paratype, ♀, Guizhou, Wudang; 15–16. L. albipuncta (Leech) : 15. ♂, Hubei, Enshi, ANDR0156; 16. ♀, Hubei, Enshi; 17–18. L. chouchuensis M. Okano & T. Okano : 17. ♂, Sichuan, Heishui; 18. ♀, Sichuan, Heishui; 19–20. L. saxicola (Oberthür) : 19. ♂, Gansu, Tanchang, SATY0720, ANDR0054; 20. ♀, Gansu, Tanchang. FIGURES 21. Male forewing upperside of Loxerebia spp. (overexposed and showing the sexual patch with white contour outlined). a. L. zangkena Lang & Wang sp. nov. : (a1) holotype, Guizhou, Wudang, SATY1342; (a2) paratype, Guizhou, Wudang, SATY1343; b. L. albipuncta (Leech) : (b1) Hubei, Wufeng; (b2) Hubei, Wufeng, SATY0820, ANDR0153; c. L. chouchuensis M. Okano & T. Okano : (c1) Sichuan, Jiuzhaigou, SATY0697, ANDR0146; (c2) Sichuan, Heishui; (c3) ssp. huanghaoi , holotype, Hubei, Shennongjia, SATY0229, ANDR0148; d. L. saxicola (Oberthür) : Gansu, Yuzhong, SATY0695, ANDR0145. FIGURES 22. Male androconia of Loxerebia spp. a. L. zangkena Lang & Wang sp. nov. : paratype, Guizhou, Wudang, ANDR0319; b. L. albipuncta (Leech) : (b1) Hubei, Enshi, ANDR0156; (b2) Hubei, Enshi, ANDR0155; (b3) Hubei, Wufeng, ANDR0154; (b4) Hubei, Wufeng, ANDR0153; (b5) Hunan, Zhangjiajie, ANDR0142; c. L. chouchuensis M. Okano & T. Okano : (c1) Sichuan, Heishui, ANDR0056; (c2) Sichuan, Maoxian, ANDR0147; (c3) Sichuan, Jiuzhaigou, ANDR0146; (c4) Sichuan, Jiuzhaigou, ANDR0055; (c5) ssp. huanghaoi , paratype, Chongqing, Chengkou, ANDR0149; (c6) ssp. huanghaoi , paratype, Hubei, Shennongjia, ANDR0057; (c7) ssp. huanghaoi , holotype, Hubei, Shennongjia, ANDR0148; d. L. saxicola (Oberthür) : (d1) Shaanxi, Ningshan, ANDR0053; (d2) Gansu, Tanchang, ANDR0054; (d3) Gansu, Yuzhong, ANDR0145. Female ( Figs. 10–12 , 14 ). FWL: 24.5–27.0 mm. Upperside: the ground colour blackish brown. Forewing: the subapical ocellus as in male but somewhat smaller and encircled with a paler orange ring; the reddish cloudy area as in male but often weakly extending inwards. Hindwing: anal ocellus as in male. Underside: the ground colour greyish and thinly stained with deep brown. Forewing: similar to male. Hindwing: similar to male but with the area outside the discal fascia more earth yellowish. Etymology. The specific name zangkena is named after Zangke-Jun, which was an ancient county including most parts of nowadays Guizhou province and eastern Yunnan province in Han Dynasty about two thousand years ago. Distribution. S.W. China (C. Guizhou ) ( Fig. 24 ).