Oreta speciosa Bryk 1943, stat. rev.
Creators: name: Song, Wenhui
name: Xue, Dayong
name: Han, Hongxiang
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Drepanidae
Oreta
Oreta speciosa

description: Oreta speciosa (Bryk, 1943) stat. rev.
Figs. 8–10, 60–61, 103, 134, 162
Psiloreta speciosa Bryk, 1943, Ark. Zool., 34A (13): 26. Holotype 3, N.E. Burma: Kambaiti (NRM). Psiloreta obtusa speciosa: Watson, 1961, Bull. Br. Mus. nat. Hist. (Ent.), 10: 345. Oreta obtusa speciosa: Watson, 1967, Bull. Br. Mus. nat. Hist. (Ent.), 19 (3): 193. Oreta hyalina Chu & Wang, 1987, Acta Ent. Sin., 30 (3): 293, fig. 4, pl.1: 7. Holotype 3, China: Sichuan, Mt. Emei (IZCAS),
syn. nov.
Material examined. MYANMAR (NRM), N.E. Burma, Kambaiti, 2000 m, 12–17.VI.1934, Malaise, R.M. prep. 3069, 13 (Holotype, photograph examined). CHINA, Henan (IZCAS): Songxian, Baiyunshan, 1300 m, 1.VI.2001, 19–25.VII.2002, coll. Shen Xiaocheng, 23; same locality, 1400 m, 23.VII.2003, coll. Qiu, 1Ƥ; Baiyunshan, 1550 m, 13–15.VIII.2008, coll. Jiang Nan, 532Ƥ; Nanyang, Baotianman, 14.VII.2006, coll. Shen Xiaocheng et al., 13; Baotianman, 1407 m, 10–11.VIII.2008, coll. Song Wenhui, 43. Hubei (IZCAS): Xingshan, Longmenhe, 1350 m, 24.VII.1993, coll. Song Shimei, 13; Shennongjia, Jiuchong, 870 m, 19.VII.1998, coll. Ye Chanjuan, 13; Shennongjia, Yazikou, 1760 m, 25.VII.1998, coll. Zhou Hongzhang, 13. Fujian (IZCAS): Chong’an, Sangang, 26.VIII.1979, coll. Wang Linyao, 13; Mt. Wuyi, Sangang, 13.V., 6.VI.1983, coll. Wang Linyao, 23; Mt. Wuyi, Dazhulan, 1150 m, 28.VII.2006, coll. Xue Dayong, 13. Sichuan (IZCAS): Mt. Emei, Qingyinge, 800–1000 m, 17.IX.1957, coll. Huang Keren, 13 (Holotype of O. hyalina). Tibet (IZCAS): Bomi, Yigong, 2300 m, 28.VIII.1983, coll. Han Yinheng, 23; Bomi, Tongmai, 2100 m, 29–31.VIII.2005, coll. Wang Xuejian, 1132Ƥ; Bomi, Yigong, Tongmai, 2079 m, 29–30.VIII.2006, coll. Lang Songyun, 13; Nyingchi, Shang Zayü, 1960 m, 21–23.VIII.2005, coll. Wang Xuejian, 131Ƥ; Mêdog, Hanmi, 2095 m, 10–11.VIII.2006, coll. Lang Songyun, 33.
Diagnosis. O. speciosa is almost identical to O. obtusa on wing pattern, but usually has a more arcuate postmedial fascia on the male forewing. The male genitalia differ in the much broader valva, the broader and shorter uncus, and the slightly broader median process of the gnathos. The most distinctive difference is in the right sacculus, which bears two pointed processes, but only one in O. obtusa. The male genitalia of O. speciosa share with O. brunnea the short uncus, broad median process of the gnathos, and short and broad valva, but the saccular processes are more developed. In addition, the lateral processes on the posterior margin of sternite 8 are longer than in O. brunnea.
Distribution. China (Henan, Hubei, Fujian, Sichuan, Tibet), Myanmar.
Remarks. Bryk (1943) described O. speciosa based on material from Myanmar. Watson (1961) subordinated it as a subspecies of Psiloreta obtusa. Later (Watson 1967), he revised it as O. obtusa speciosa, synonymized the genus Psiloreta with Oreta, and added Fujian and Sichuan (Moupin, Tsien-tsuen, N. Chengdu) in the distribution of the species. At the same time, he described O. obtusa dejeani from Siao-lou in Sichuan, which is close to the above localities. He also noted that “some Sichuan examples originated from localities close to those recorded for dejeani. The topography of this region is, however, one of steep-sided valleys which may serve to isolate speciosa from dejeani. ”. In the collection of IZCAS, specimens of speciosa and dejeani are present from Hanmi in Mêdog, and Aniqiao and Yarang in Mêdog, the distance between which being only 12 km. If speciosa were regarded as a subspecies of obtusa, this would effectively be a sympatric distribution of two subspecies. Since to substantial differences in the male genitalia of these two taxa, we conclude that O. obtusa speciosa should be separated as a distinct species. The holotype of O. hyalina is identical to that of O. speciosa on external features, and shows only minor differences in the male genitalia (the slenderer median process of the gnathos and longer saccus), and is therefore here synonymized with the latter species.
description: Published as part of Song, Wenhui, Xue, Dayong & Han, Hongxiang, 2012, Revision of Chinese Oretinae (Lepidoptera, Drepanidae), pp. 1-36 in Zootaxa 3445 on page 7, DOI: 10.5281/zenodo.212981