Taxonomic study of the leafhopper genus Agnesiella Dworakowska (Hemiptera Cicadellidae: Typhlocybinae) from China, with descriptions of 13 new species Author Wang, Junjie 0000-0002-6611-1075 Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi Province, 712100, China. & wang _ junjie @ nwafu. edu. cn; https: // orcid. org / 0000 - 0002 - 6611 - 1075 wang_junjie@nwafu.edu.cn Author Zhang, Yalin 0000-0002-1204-9181 Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi Province, 712100, China. & yalinzh @ nwsuaf. edu. cn; https: // orcid. org / 0000 - 0002 - 1204 - 9181 yalinzh@nwsuaf.edu.cn Author Huang, Min 0000-0001-7621-4863 Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi Province, 712100, China. & huangmin @ nwsuaf. edu. cn; https: // orcid. org / 0000 - 0001 - 7621 - 4863 huangmin@nwsuaf.edu.cn text Zootaxa 2022 2022-02-03 5094 2 201 233 journal article 20793 10.11646/zootaxa.5094.2.1 ce1a5130-c96e-4109-a57f-aaad1a1e6eb5 1175-5326 5965091 72945796-D3AC-4B14-99BB-8874FAD383CD Key to males of Agnesiella from China 1. Setae not clustered on pygofer side.......................................................... A. ( Agnesiella ), 2 - Setae clustered and usually divided into 2 groups on pygofer side................................. A. ( Draberiella ) 11 2. Paramere with subapical protrusion....................................................................... 3 - Paramere without subapical protrusion................................................................... 10 3. Aedeagal shaft with incision on dorsal margin subapically in lateral view............... A. ( A. ) buysi Dworakowska, 1982 - Aedeagal shaft without incision on dorsal margin subapically in lateral view...................................... 4 4. Paramere with subapical protrusion (Fig. 67)......................... A. ( A. ) marginata Dworakowska, 1994 rec. nov. - Paramere with 2 subapical protrusions..................................................................... 5 5. Paramere with caudal apex angle with upper subapical protrusion nearly equal to 90..... A. ( A. ) juglandis Chou & Ma, 1981 - Paramere with caudal apex angle with upper subapical protrusion slightly less than 180°............................. 6 6. Pronotum with T-shaped blackish patch on central area........................... A. ( A. ) nitobella ( Matsumura, 1932 ) - Pronotum without T-shaped blackish patch on central area..................................................... 7 7. Pronotum with single blackish patch on center of anterior margin............................................... 8 - Pronotum without single blackish patch on center of anterior margin............... A. ( A. ) lyraeformis ( Matsumura, 1932 ) 8. Pronotum with blackish patches on central area near posterior margin............. A. ( A. ) matsumurai Dworakowska, 1982 - Pronotum without blackish patches on central area near posterior margin......................................... 9 9. Pronotum with pair of lateral blackish patches ( Fig. 10 )....................... A. ( A. ) protensa Huang & Zhang sp. nov. - Pronotum with 2 pairs of lateral blackish patches................................. A. ( A. ) giranna ( Matsumura, 1932 ) 10. Aedeagal shaft with ventral appendage nearly equal to 1/4 length of aedeagal shaft in lateral view ( Fig. 87 )................................................................................... A. ( A. ) recurva Huang & Zhang sp. nov. - Aedeagal shaft with ventral appendage nearly equal to 1/2 length of aedeagal shaft in lateral view ( Fig. 96 ).................................................................................... A. ( A. ) polita Huang & Zhang sp. nov. 11. Pygofer side with setae near ventral margin basally......................................................... 12 - Pygofer side without setae near ventral margin basally....................................................... 15 12. Pygofer side with long fine setae near posterior margin...................................................... 13 - Pygofer side without long fine setae near posterior margin.................................................... 14 13. Aedeagal shaft with subapical ventral margin irregularly undulated.................... A. ( D. ) sinuata Yan & Yang, 2019 - Aedeagal shaft with subapical ventral margin not undulated ( Fig. 155 ).......... A. ( D. ) apiculata Huang & Zhang sp. nov. 14. Ventral appendage of aedeagal shaft with 2 digitiform branches ( Fig. 141 )......... A. ( D. ) exigua Huang & Zhang sp. nov. - Ventral appendage of aedeagal shaft with 1 digitiform branch......................... A. ( D. ) latusa Yan & Yang, 2016 15. Pygofer appendage furcate............................................................................. 16 - Pygofer appendage not furcate.......................................................................... 17 16. Pygofer appendage trifurcate ( Fig. 160 )................................... A. ( D. ) tridigitata Huang & Zhang sp. nov. - Pygofer appendage bifurcate................................................... A. ( D. ) rita Dworakowska, 1982 17. Pygofer appendage arising from posteroventral margin....................................................... 18 - Pygofer appendage arising from posterior margin........................................................... 26 18. Paramere with 2 subapical protrusions......................................... A. ( D. ) roxana Dworakowska, 1982 - Paramere with a subapical protrusion..................................................................... 19 19. Paramere with subapical protrusion nearly as long as caudal apex.............................................. 20 - Paramere with subapical protrusion small and distinctly shorter than caudal apex.................................. 22 20. Aedeagal shaft with bifurcate ventral appendage..................................... A. ( D. ) furca Yan & Yang, 2019 - Aedeagal shaft without ventral appendage................................................................. 21 21. Forewing with a dark brown patch at base ( Figs 33, 37 )........................ A. ( D. ) glabra Huang & Zhang sp. nov. - Forewing without patch at base................................................. A. ( D. ) innota Yan & Yang, 2019 22. Aedeagal shaft with a distinctly lamellar extension dorsally in lateral view....................................... 23 - Aedeagal shaft without lamellar extension dorsally in lateral view...................... A. ( D. ) azra Dworakowska, 1994 23. Aedeagal shaft with digitiform ventral appendage directed distad in lateral view.................................. 24 - Aedeagal shaft with digitiform ventral appendage directed basad in lateral view................................... 25 24. Aedeagal shaft with apex narrowing gradually in posterior view ( Fig. 182 )........ A. ( D. ) stipitata Huang & Zhang sp. nov. - Aedeagal shaft with subapex constricted in posterior view ( Fig. 113 )................ A. ( D. ) lata Huang & Zhang sp. nov. 25. Digitiform ventral appendage of aedeagal shaft slightly less than 1/2 as long as aedeagal shaft in lateral view ( Fig. 112 ).......................................................................... A. ( D. ) gaura Huang & Zhang sp. nov. - Digitiform ventral appendage of aedeagal shaft very short in lateral view................. A. ( D. ) erosa Yan & Yang, 2016 26. Paramere with subapical protrusion nearly as long as caudal apex.............................................. 27 - Paramere with subapical protrusion small and distinct shorter than caudal apex................................... 28 27. Pygofer side with long fine setae near posteroventral margin ( Fig. 144 )............ A. ( D. ) mitrata Huang & Zhang sp. nov. - Pygofer side without long fine setae near posteroventral margin........................... A. ( D. ) aldera Thapa, 1984 28. Aedeagal shaft with distinctly lamellar extension dorsally in lateral view............... A. ( D. ) xantha Yan & Yang, 2016 - Aedeagal shaft without distinctly lamellar extension dorsally in lateral view...................................... 29 29. Aedeagal shaft with ventral appendage lamellar ( Fig. 128 )..................... A. ( D. ) eleganta Huang & Zhang sp. nov. - Aedeagal shaft with ventral appendage not lamellar......................................................... 30 30. Aedeagal shaft with ventral appendage bifurcate............................................................ 31 - Aedeagal shaft with ventral appendage trifurcate........................................................... 32 31. Aedeagal shaft with middle part of dorsal margin serrated............................. A. ( D. ) ela Dworakowska, 1977 - Aedeagal shaft with dorsal margin smooth........................................ A. ( D. ) digita Yan & Yang, 2019 32. In lateral view, three branches of ventral appendage of aedeagal shaft each arising separately from common stem ( Fig. 120 )................................................................. A. ( D. ) longisagittata Huang & Zhang sp. nov. - In lateral view, 2 outer branches of ventral appendage of aedeagal shaft with common stem separate from innermost branch (Fig. 104).......................................................... A. ( D. ) irma Dworakowska, 1977 rec. nov.