Review of the leafhopper genus Thaia Ghauri and related genera (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) Author Cao, Yanghui 0000-0002-0515-0767 Key Laboratory of Plant Protection Resources and Pest Management, National Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi 712100, P. R. China & Illinois Nature History Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 1816 S Oak St., Champaign, IL 61820, USA & caoyh @ illinois. edu; https: // orcid. org / 0000 - 0002 - 0515 - 0767 caoyh@illinois.edu Author Dmitriev, Dmitry A. 0000-0002-3293-4794 Illinois Nature History Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 1816 S Oak St., Champaign, IL 61820, USA & arboridia @ gmail. com; https: // orcid. org / 0000 - 0002 - 3293 - 4794 arboridia@gmail.com Author Dietrich, Christopher H. 0000-0003-4005-4305 Illinois Nature History Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign, 1816 S Oak St., Champaign, IL 61820, USA & chdietri @ illinois. edu; https: // orcid. org / 0000 - 0003 - 4005 - 4305 chdietri@illinois.edu Author Zhang, Yalin Key Laboratory of Plant Protection Resources and Pest Management, National Ministry of Education, Entomological Museum, Northwest A & F University, Yangling, Shaanxi 712100, P. R. China text Zootaxa 2020 2020-10-28 4868 3 331 367 journal article 8891 10.11646/zootaxa.4868.3.2 03a9be04-f633-4adc-8397-058c282f216b 1175-5326 4417761 256D29E7-5148-415C-AD06-5F1F6D986887 9. Etmaria magna Cao & Dietrich sp. nov. Figs 8 , 19 e–h Description. Ground color dark (specimen preserved in ethanol before examined), vertex and face lighter, midline of frontoclypeal area infuscated, eyes dark grey. Crown fore margin parallel to hind margin, coronal suture indistinct; anteclypeus relatively narrow. Anal tube appendage very slim, located near middle of anal tube. Boundary between basal and distal pygofer lobes rounded; ventral appendage tubular with furrows, sinuated, only expanded at very base, with rigid setae at base, apex surpassing hind margin of lobe. Subgenital plate with about 4 macrosetae. Style with apical part slim and short, apex slightly curved inwards in dorsal view, pointed and curved in lateral view. Connective with manubrium long and relatively narrow, central lobe with fore margin slightly concave, extended to tip of lateral arms. Aedeagal shaft relatively short, directed dorsad, atrium wide and very long in lateral view, expanded medially in caudal view, mushroom-shaped; dorsal apodeme well developed, lamellate; preatrium elongated, without processes. Measurement. Male length 5.05 mm. Material examined. Holotype : ♂ , CHINA , Taiwan , Taichung , Dashuishan Forest Rd. km 20, 1250m , 24°15'6"N , 120°54'58"E , 18 vi 2004 , sweeping, coll. C.H. Dietrich. [ TNMNS ]. Etymology. The new specific epithet is derived from Latin adjective “ magnus ” which means large, big, referring to that the large body size of this species. Diagnosis. The new species is similar to E. dentata sp. nov. , but the anal tube appendage is much slimmer, the pygofer ventral appendage is only expanded at the very base, the central lobe of the connective is extended to the tip of the lateral arms, and the aedeagal atrium is mushroom-shaped.