Monopelopia Fittkau, 1962, a newly recorded genus from Oriental China (Diptera Chironomidae) with a description of Monopelopia zhengi Lin sp. n. Author Duan, Xin 0000-0002-0225-8991 Department of Plant Protection, College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin, 300392, P. R. China & https: // orcid. org / 0000 - 0002 - 0225 - 8991 Author Chang, Tong 0000-0002-1283-4040 Tianjin Key Laboratory of Conservation and Utilization of Animal Diversity, Tianjin Normal University, Tianjin, 300387, P. R. China. https: // orcid. org / 0000 - 0002 - 1283 - 4040 Author Jiao, Ke-Long 0000-0001-7467-9333 Department of Plant Protection, College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin, 300392, P. R. China & jiaokelong @ 163. com; https: // orcid. org / 0000 - 0001 - 7467 - 9333 Author Wang, Xin-Hua 0000-0001-7293-8223 College of Life Sciences, Nankai University, 300071, P. R. China & https: // orcid. org / 0000 - 0001 - 7293 - 8223 Author Lin, Xiao-Long 0000-0001-6544-6204 College of Life Sciences, Nankai University, 300071, P. R. China & lin 880224 @ gmail. com; https: // orcid. org / 0000 - 0001 - 6544 - 6204 lin880224@gmail.com text Zootaxa 2021 2021-06-01 4980 2 383 388 journal article 6000 10.11646/zootaxa.4980.2.9 4d3ccfa0-ccd1-4cf9-8689-0b8f64a22d72 1175-5326 4889283 09279C43-BEEF-4C72-97E8-5D97DE4B18B2 Key to known adult males of Monopelopia Fittkau (adapted from Oliveira et al. (2010) , Paul, Hazra & Mazumdar (2014) and Dantas & Hamada (2017)) 1. Mid and hind legs bearing single tibial spur................................................................ 2 - Mid and hind legs bearing two tibial spurs................................................................ 16 2. Vein R 2 present....................................................................................... 3 - Vein R 2 absent........................................................................................ 5 3. Vein R 2 apically forked............................................................. M . divergens (Johannsen) - Vein R 2 not apically forked............................................................................. 4 4. Second palpomere with 2–3 darker spines; hind tibial comb with seven setae, ta 3 with pseudospur..................................................................................................... M . boliekae Beck & Beck - Second palpomere without darker spine; hind tibial comb with 8 setae, no pseudospur on ta 3 ............................................................................................. M . mongpuense Paul, Hazra & Mazumdar 5. Wing length 1.0 mm........................................................ M . minuta Serpa-Filho & Oliveira - Wing length> 1.0 mm................................................................................. 6 6. Second palpomere with pale subapical setae subequal to its length; temporals uniserial to multiserial.................................................................................................... M . tenuicalcar (Kieffer) - Second palpomere with at least one pale subapical seta longer than its length; temporals uniserial...................... 7 7. Tergite IX with two setae............................................................................... 8 - Tergite IX with 4–9 setae.............................................................................. 10 8. Tergite VIII pale; numerous blunt tipped setae present on all tarsomeres........................ M . mikeschwartzi Epler - Tergite VIII brown; blunt tipped setae absent on all tarsomeres................................................. 9 9. Tergite IX with one seta on each side; hind tibial comb with 5–6 setae; prealars 14............ M . tillandsia Beck & Beck - Tergite IX with two setae on each side; hind tibial comb with 7–9 setae; prealar 1................... M . pavida Harrison 10. Palpomere 2 / palpomere 3 0.31–0.34.................................................................... 11 - Palpomere 2 / palpomere 3 0.52–0.70.................................................................... 13 11. Wing length 1.22–1.39 mm ; middle tibia without preapical long seta; Tergites I-V with a broad oral brown band............................................................................ M . caraguata Mendes, Marcondes & Pinho - Wing length 1.85–2.06 mm ; middle tibia with one preapical seta; Tergites I-V not as above......................... 12 12. Tibial comb with nine bristles.................................................. M . laudelinae Dantas & Hamada - Tibial comb with seven bristles.......................................... M . paranaense Oliveira, Mendes & Silva 13. Tergite IX with four setae........................................................... M . iara Dantas & Hamada - Tergite IX with 6–9 setae.............................................................................. 14 14. AR> 1.10; phallapodeme elongate, 57–63 μm long; gonostylus 110–123 μm long........... M . adeliae Dantas & Hamada - AR <1; phallapodeme normal, 25–31 μm long; gonostylus 82–91 μm long...................................... 15 15. Wing> 1.20 mm ; tibial comb well developed, with 9 bristles........................ M . macunaima Dantas & Hamada - Wing < 1.15 mm ; tibial comb indistinct............................................ M . edentata Dantas & Hamada 16. Phallapodeme small, the length nearly 1/3 of gonocoxite..................................................... 17 - Phallapodeme reach the base of gonostylus, the length slightly shorter than gonocoxite............................ 18 17. AR 1.30; Tergites II-V with basal half brown infuscate.......................................... M . gesta (Roback) - AR 0.8; Tergites II-V not as above...................................................... M . meilloni (Freeman) 18. Antenna with 13 flagellomeres, gonostylus wider at the base and tapering gradually to the apex....... M. zhengi Lin sp. n. - Antenna with 15 flagellomeres, gonostylus apically wide..................................... M . robacki (Lehmann)