Two new species of the genus Flavoperla (Plecoptera: Perlidae) from Guangxi China Author Mo, Raorao 0000-0001-9480-092X Guangxi key laboratory of Agric-Environment and Agric-Products Safety and National Demonstration Center for Experimental Plant Science Education, Agricultural College, Guangxi University, Nanning, Guangxi 530004, China. & Department of Plant Protection, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China. & Department of Zoology, Eszterházy Károly University, Leányka u. 6, Eger H- 3300, Hungary. & 1689832746 @ qq. com; https: // orcid. org / 0000 - 0001 - 9480 - 092 X 1689832746@qq.com Author Cao, Jinjun 0000-0001-5649-0465 Department of Plant Protection, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China. & cjj 1986108 @ 163. com; https: // orcid. org / 0000 - 0001 - 5649 - 0465 Author Wang, Guoquan 0000-0003-1693-1654 Guangxi key laboratory of Agric-Environment and Agric-Products Safety and National Demonstration Center for Experimental Plant Science Education, Agricultural College, Guangxi University, Nanning, Guangxi 530004, China. & wangguoquan 0 @ 163. com; https: // orcid. org / 0000 - 0003 - 1693 - 1654 Author Li, Weihai 0000-0003-2803-4416 Department of Plant Protection, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China. & lwh 7969 @ 163. com; https: // orcid. org / 0000 - 0003 - 2803 - 4416 Author Murányi, Dávid 0000-0002-3907-5590 Department of Zoology, Eszterházy Károly University, Leányka u. 6, Eger H- 3300, Hungary. & d. muranyi @ gmail. com; https: // orcid. org / 0000 - 0002 - 3907 - 5590 d.muranyi@gmail.com text Zootaxa 2021 2021-09-07 5032 2 247 261 journal article 10.11646/zootaxa.5032.2.6 1175-5326 5487431 5C01DEE6-291F-4EF7-A10A-BBCA145A8ECA Flavoperla retusata Mo, Li & Wang , sp. nov. ( Figs. 1–5 ) Adult habitus . Biocellate. Male adult color yellow in life, and paler in alcohol. Head pale with an M-shaped dark brown marking behind M-line, a triangular dark brown spot between ocelli, and with a smaller triangular dark brown spot in front of pale M-line; antennae brown; palpi pale brown; head slightly wider than pronotum ( Figs. 1a , 4a ). Pronotum brown, elliptical, with paler rugosities; corners obtuse. Wing membrane pale yellow, veins yellow; legs, abdominal segments and cerci yellow. Male ( Figs. 1b–1f , 2 , 3 ). Forewing length 9.1–9.4 mm (n=4). Hindwing 8.1–8.4 mm . Tergum 10 with triangular epiproct sclerite positioned between and caudad to paired sclerotized triangular spines, positioned posterolaterally ( Fig. 1b ); epiproct sclerites with a small membranous triangular basal area. Paraprocts curved dorsally, triangular with blunt tip. Hammer brown basally with wing-shaped anterolateral extensions; apical half unpigmented and triangular in ventral view; apex slightly swollen, cylindrical in lateral view ( Figs. 1c–1e , 2c–2d ). Everted aedeagus ( Figs. 1f , 2 , 3 ) membranous, tubular, with a pair of large rounded lobes in basolateral area and a pair of small swollen lobes in mediolateral area; dorsal surface of apical half and apical surface mostly covered with tiny pale brown spines; subapical part with a pair of smaller lateral lobes and a pair of ventral patches composed of tiny pale brown spines, and with a short ventral process; apical part with a short nose-shaped sclerite, a mustache-shaped sclerite, and a slender sclerite ( Figs. 1f , 2 , 3 ). Female ( Fig. 4 ). Forewing length 10.3–10.5 mm (n=4). Hindwing length 9.3–9.5 mm . Habitus generally similar to male except body color darker. Abdomens of collected females full of mature eggs. Subgenital plate large, rectangular, slightly constricted subapically, with a deeply triangular posterior notch forming a pair of apical lobes with blunt tips, and reaching beyond midpoint of sternum 10. Sternum 9 slightly sclerotized, deeply emarginate posteromedially ( Fig. 4c ). Sternum 10 poorly sclerotized. FIGURE 1. Flavoperla retusata Mo, Li & Wang , sp. nov. (male from Neichao Village). a. Head and pronotum, dorsal view. b. Terminalia, dorsal view. c. Hammer, lateral view. d. Hammer after being cleared, lateral view. e. Hammer after being cleared, ventral view. f. Aedeagus, caudal view. FIGURE 2. Flavoperla retusata Mo, Li & Wang , sp. nov. (male from Neichao Village). a. Terminalia and aedeagus, dorsal view. b. Aedeagus after being cleared, dorsal view. c. Terminalia and aedeagus, ventral view. d. Terminalia and aedeagus, lateral view. Egg ( Fig. 5 ). Length 367–439 μm, width 252–288 μm (n=4). Outline chicken egg-shaped with distinct opercu- lar line, widest towards collar end. Anchor mushroom-shaped with long tentacle-like projections, globular bodies evenly distributed and not grouped. Collar short and fully covered by anchor. Chorionic surface covered with shallow but distinct punctations throughout, pentagonal or hexagonal follicular cell impressions recognizable only on opercular end. Micropylar orifices sessile, much larger than chorionic punctations, set on subequatorial line. Type material . Holotype : male ( HIST ), CHINA : Guangxi Zhuang Autonomous Region , Nanning City , Wuming County , Liangjiang Town , Neichao Village , Longmugou River , 2020.V.18 , N 23°29′39" , E 108°21′36" , 199 m , R . R . Mo, Y . Lai, Y.Y . Mo . Paratypes : 1 male ( HIST ), same data as holotype, 2020. V .19; 2 females ( HIST ), Guangxi Zhuang Autonomous Region , Nanning City , Wuming County , Liangjiang Town , Neichao Village , Neichao Hotel , light trap , 2020. V .21, N 23°29′32" , E 108°21′29" , 194 m , R . R . Mo, Y . Lai, Y.Y . Mo ; 1 female ( HIST ), same data as above, light trap , 2020. V .18; 2 males and 2 females ( HIST ), same data as above, light trap , 2020. V .20. FIGURE 3. Flavoperla retusata Mo, Li & Wang , sp. nov. (male from Neichao Village). a. Aedeagus, dorsal view. b. Aedeagus, ventral view. c. Aedeagus, lateral view. d. Aedeagus, caudal view. FIGURE 4. Flavoperla retusata Mo, Li & Wang , sp. nov. (female from Neichao Village). a. Head and pronotum, dorsal view. b. Terminalia, ventral view. c. Terminalia after being cleared, ventral view. d. Terminalia, lateral view. e. Terminalia, oblique lateral view. FIGURE 5. Flavoperla retusata Mo, Li & Wang , sp. nov. (eggs from Neichao Village). a. Eggs, lateral view. b. Entire egg, lateral view. c. Collar end, lateral view. d. Collar end, apical view. e. Opercular end and micropyle (arrow), lateral view. f. Opercular end, apical view. Etymology . The specific name refers to the deep posterior notch of the subgenital plate of female sternum VIII, Latin “retusus” means notch. Distribution . China : Guangxi Zhuang Autonomous Region, known from the foothills of the Damingshan Mts. A total of 37 rivers originate from Damingshan Mountain, irrigating farmland in Shanglin, Binyang, Wuming and Mashan Counties, as well as more than 30 hydropower stations. It is the most important water source center in central and western Guangxi . Remarks . See comments below under F. yangi Mo, Li & Murányi , sp. nov.