Ankylopteryx ferruginea Tsukaguchi 1995

[5] Ankylopteryx ferruginea Tsukaguchi, 1995 (Figs 10, 79) Ankylopteryx ferruginea Tsukaguchi, 1995: 127. Type locality: Japan (Okinawa, Iriomote Island). Holotype in UOP. Diagnosis. This species is characterized by the presence of the scape and pedicel without stripes, the small pale brown spots present on the anterolateral angle of pronotum, the pro-, meso- and metatibia with median black spot, the triangular cell im, the arched inner gradate series, the male entoprocessus attached at about basal 1/3 of gonarcus, and the narrowed and projected apex of entoprocessus. Description. Male. Body length 7.4–8.8 mm, forewing length 10.0– 11.4 mm, hindwing length 9.6–10.2 mm. Head yellow, vertex raised. Compound eyes brown. Antennal scape and pedicel without stripes. Clypeal margin with brown stripes. Gena without spots. Maxillary and labial palpi brownish yellow. Pronotum anterior margin shorter than posterior margin, with small pale brown spots on anterolateral angle; mesonotum and metanotum without markings. Legs with dense setae. Pro-, meso- and metatibia with median black spot. Pretarsal claws brown, with basal dilation. Forewing broad, with brown shadings on base of Rs, psm-psc crossveins and CuP. Pterostigma brown. Costal area broad basally, with 20–24 crossveins; 9–10 radial crossveins and 7 psm-psc crossveins present. m1 smaller than m2, im triangular. c1 smaller than c2, dcc opened. A1 forked, A2 and A3 simple. Gradate series with small pale brown shadings, inner gradate series arched and with 4–7 crossveins, outer gradate series with 6–8 crossveins. Hindwing narrow, with brown shadings on base of Rs and middle posterior margin crossveins. Pterostigma pale brown. Costal area with 15–16 crossveins; 8–9 radial crossveins and 6 psm-psc crossveins present. A1 forked, A2 and A3 simple. Inner gradate series with 3–5 crossveins, outer gradate series with 5–7 crossveins. Abdomen with dense short setae. Tergum VII and sternum VII subquadrate in lateral view; tergum VIII shorter than tergum VII; sternum VIII fused with sternum IX; tergum IX fused with ectoproct. Callus cerci ovoid. Gonarcus arcuate, lateral arms narrow at base and wide at tip; entoprocessus attached at about basal 1/3 of gonarcus, narrowed and projected at tip; pseudopenis widest near tip and curved. Female. Body length 7.2–10.0 mm, forewing length 11.6–13.3 mm, hindwing length 10.3–11.9 mm. Sternum VII longer than tergum VII; tergum VII subquadrate in lateral view; tergum VIII shorter than tergum VII; tergum IX fused with ectoproct. Callus cerci ovoid. Subgenitale bilobed apically; spermatheca thick; vela and ventral impression absent; duct long and coiled. Material. 2♀, China, Fujian, Zhangzhou, Nanjing, Xiangxi, 250 m, 2020.V.20, Yuchen Zheng (CAU); 1♂ 7♀, China, Guangdong, Shaoguan, Shixing, Chebaling National Nature Reserve, 370 m, 2020.VII.16, Ying Yang (CAU); 3♀, China, Guangdong, Shaoguan, Shixing, Chebaling National Nature Reserve, 360–380 m, 2018.VII.10–12, Di Li (CAU); 1♀, China, Guangdong, Shaoguan, Shixing, Chebaling National Nature Reserve, 2020.VIII.25, Zu Ruan (CAU); 1♀, China, Guangdong, Shaoguan, Shixing, Chebaling National Nature Reserve, light, 2020.VII.03, Junzhi Cui (CAU); 2♂, China, Guangxi, Chongzuo, Longzhou, Nonggang National Nature Reserve, 90 m, 2021.VI.06, Yan Lai & Ying Yang (CAU); 1♀, China, Guangxi, Hezhou, E’xi National Nature Reserve, 367 m, 2021.VIII.11, Xiaodong Cai (CAU); 1♀, China, Guangxi, Chongzuo, Longzhou, Nonggang National Nature Reserve, 240 m, 1982.V.19, Fasheng Li (CAU); 4♀, China, Guangxi, Chongzuo, Longzhou, Nonggang National Nature Reserve, 240 m, 1982.V.21, Chikun Yang (CAU); 1♀, China, Guangxi, Chongzuo, Ningming, Longrui National Nature Reserve, 180 m, 1954.V.17, Fasehng Li (CAU); 1♀, China, Hainan, Yinggeling National Nature Reserve, 2013. IV.15, Jianyun Wang & Pei Jiang (CAU); 1♂, China, Guizhou, Libo, Maolan National Nature Reserve, 512 m, 2014. VII.26, Lu Yue (CAU); 1♂ 4♀, China, Yunnan, Xishuangbanna, Menglun, No. 55 experimental site, light, 780 m, 2019.IV.28–29, Hongyu Li; 1♀, China, Yunnan, Xishuangbanna, Mengyang, Yexianggu, 680 m, 2016.VIII, Yunlan Jiang (CAU); 1♀, China, Yunnan, Xishuangbanna, Mengyang, Yexianggu, 792 m, 2022.VIII.11, Zhaoyang Chen & Qinpeng Liu (CAU); 1♀, China, Yunnan, Xishuangbanna, Mengyang, Yexianggu, 2015.IV.17, Feiyang Liang (CAU); 1♀, China, Yunnan, Qujing, Huize, 800 m, 1979.IV.18 (CAU); 1♀, China, Yunnan, Puer, Lancang, 2017. VII.20 (CAU); 2♀, China, Yunnan, Cangyuan, Nangunhe National Nature Reserve, 600 m, 2019.X.05–06, Hongyu Li (CAU); 1♀, China, Taiwan, Nantou, Ren’ai, Guanyin Waterfall, 400 m, 2019.VI.13, Xingyue Liu (CAU); 1♀, Laos, Xaignabouri, near Hatdai, 250 m, 2016.III.26, Xingyue Liu (CAU); 2♂, Japan, Okinawa, Iriomotejima, Arrogawa Kon, 2012.VII.02, Xingyue Liu (CAU); 1♀, Malaysia, Sabah, Kota Kinabalu, Trus Madi Entomology Camp, 1230 m, 2018.VII.17–22, Yunlan Jiang (CAU). Distribution. China (Fujian, Guangdong, Guangxi, Guizhou, Hainan, Taiwan, Yunnan); Japan (Okinawa); Laos (Xaignabouri); Malaysia (Sabah). Remarks. This species can be distinguished easily by the simple markings on body and the arched inner gradate crossvein series.