Orybina plangonalis (Walker, 1859)

Qi, Mujie, Sun, Yongling & Li, Houhun, 2017, Taxonomic review of the genus Orybina Snellen, 1895 (Lepidoptera, Pyralidae, Pyralinae), with description of two new species, Zootaxa 4303 (4), pp. 545-558 : 549

Orybina plangonalis (Walker, 1859)

( Figs 2 , 13 , 21 )

Scopula plangonalis Walker, 1859: 790 . Type locality: North India.

Oryba conspicualis Snellen, 1890: 562 . Type locality: India.

Orybina plangonalis (Walker) : Hampson, 1896: 182; Yoshiyasu, 1992: 90; Wang et al., 2003: 163; Mathew, 2006: 2251; Wang & Kishida, 2011: 28; Irungbam et al., 2016: 380.

Material examined. Guangxi: 1 ♂, Jiuniutang (25.88°N, 110.49°E), Mt. Mao'er, Guilin, 1016 m, 23-VII-2015, leg. Mujie Qi, Shengnan Zhao, genitalia slide No. QMJ15057 ; Henan: 1 ♀, Shiziping (33.79°N, 110.88°E), Lushi, 1200 m, 19-VII-2001, leg. Dandan Zhang, genitalia slide No. JQ07390 ; Sichuan: 1 ♀, Wolong (31.03°N, 103.18°E), 1900 m, 7-VIII-2004, leg. Yingdang Ren, genitalia slide No. QMJ15103 ; 1 ♂, Wolong (31.02°N, 103.17°E), 2008 m, 24-VII-2005, leg. Haili Yu, genitalia slide No. QMJ15107; 2 ♂, Fengtongzhai (30.53°N, 102.92°E), Baoxing County, 1600 m, 2, 3-VIII- 2 0 0 4, leg. Yingdang Ren, genitalia slide Nos. QMJ15100 ; QMJ15106; Yunnan: 1 ♂, Laiyanghe (22.61°N, 101.09°E), Pu'er, 1700 m, 28-VII-2007, leg. Ping You ; 1 ♀, Liaowangtai (22.60°N, 101.11°E), Taiyanghe National park, Pu'er, 1626 m, 8-VII-2013, leg. Shurong Liu, Yuqi Wang, Kaijian Teng; 1 ♀, Baihualing (25.29°N, 98.80°E), Mt. Gaoligong , Baoshan, 1473 m, 30-VII-2013, leg. Shurong Liu, Yuqi Wang and Kaijian Teng ; 1 ♂, Taiyanghe National park (22.60°N, 101.01°E), Pu'er, 1450 m, 8- VIII-2014, leg. Zhenguo Zhang; Zhejiang: 1 ♀, Mt. Fengyang (27.90°N, 119.16°E), Longquan, Lishui, 1470 m, 29-VII-2007, leg. Qing Jin, genitalia slide No. 15105 ; 1 ♂, Mt. Qingliangfeng (30.11°N, 118.95°E), Lin'an, 900 m, 10-VII-2005, leg. Yunli Xiao, genitalia slide No. 15098.

Diagnosis. Adult ( Fig. 2 ) wingspan 24.0–33.0 mm. This species can be separated from its congeners by the forewing with a yellow cresent spot below costa on the inner side of the postmedial line and a silver-white spot posterolateral to it. Orybina plangonalis is similar to O. regalis in the male and female genitalia, but it can be distinguished from the latter by the uncus parallel for basal half and distinctly narrowed to pointed apex, the valva with dorsal margin convex in the male genitalia ( Fig. 13 ); by the ductus bursae joined the corpus bursae at middle of the lateral side of the corpus bursae, and the corpus bursae about half the length of the ductus bursae in the female genitalia ( Fig. 21 ). In O. regalis , the uncus is broadened medially, and the valva is convex at dorsal margin in the male genitalia ( Fig. 14 ); the ductus bursae joins the corpus bursae at posterolateral side of the corpus bursae, and the corpus bursae is about 4/5 the length of the ductus bursae in the female genitalia ( Fig. 22 ).

Distribution. China (Guangdong, Guangxi, Guizhou, Henan, Hubei, Jiangxi, Shaanxi, Sichuan, Taiwan ( Yoshiyasu 1992), Yunnan, Zhejiang), Bhutan ( Irungbam et al. 2016), India (Walker 1859), Myanmar ( Wang et al. 2003), Thailand (Yanagita et al. 2006–2017).

Figures

FIGURES 1 – 8. Adults of Orybina spp. 1. O. kobesi, ♂; 2. O. plangonalis, ♂; 3. O. regalis, ♂; 4. O. bellatulla sp. nov., paratype, ♀; 5. O. puerensis sp. nov., holotype, ♂; 6. O. hoenei, ♂; 7. O. flaviplaga, ♂; 8. O. imperatrix, ♂. (Scale bars: 5.0 mm).

FIGURES 12 – 15. Male genitalia of Orybina spp. 12. O. kobesi, slide No. QMJ 15091; 13. O. plangonalis, slide No. QMJ 15106; 14. O. regalis, slide No. QMJ 15088; 15. O. bellatulla sp. nov., holotype, slide No. QMJ 15181. (Scale bars: 0.5 mm).

FIGURES 20 – 26. Female genitalia of Orybina spp. 20. O. kobesi, slide No. QMJ 15102; 21. O. plangonalis, slide No. QMJ 15103; 22. O. regalis, slide No. WSS 02206; 23. O. bellatulla sp. nov., paratype, slide No. QMJ 15182; 24. O. hoenei, slide No. QMJ 15189; 25. O. flaviplaga, slide No. SYL 11133; 26. O. imperatrix, slide No. QMJ 15110. (Scale bars: 1.0 mm).