A new species of Chetoneura Colless from Borneo (Diptera: Keroplatidae) Author Kazandzhieva, Svetlozara 0000-0001-5018-8951 Department of Zoology, University of Plovdiv, 24 Tzar Assen Str., BG 4000 Plovdiv, Bulgaria & Regional Museum of Natural History - Plovdiv, 34 Hristo G. Danov Str., BG 4000 Plovdiv, Bulgaria & svetlozara. k @ gmail. com; https: // orcid. org / 0000 - 0001 - 5018 - 8951 svetlozara.k@gmail.com Author Bechev, Dimitar 0000-0001-5697-1197 Department of Zoology, University of Plovdiv, 24 Tzar Assen Str., BG 4000 Plovdiv, Bulgaria & dbechev @ abv. bg; https: // orcid. org / 0000 - 0001 - 5697 - 1197 dbechev@abv.bg text Zootaxa 2022 2022-03-01 5104 4 593 599 journal article 20369 10.11646/zootaxa.5104.4.9 b507936a-58a7-4ae6-a21d-80ac84c985df 1175-5326 6332233 D8D1FF6D-8B84-4D88-8EC7-8103DBFAF7F0 Key to the species of Chetoneura 1. R-M fusion very short ( Fig. 2 ). Tergite IX slightly longer than broad or up to about 1.7 as long as wide, not subtriangular... 2 - R-M fusion as long as r-m or more. Tergite IX shorter than broad, subtriangular.................................... 4 2. Scutum yellowish, with lateral margins and two submedian longitudinal stripes dark. Tergite IX slightly longer than broad, length/width ratio about 1/1. Form of tergite IX— Fig. 7 ........................ Ch. davidi Ševčík, Hippa & Burdiková - Scutum light yellowish brown, without bands or brown, with thin darker brown oblique bands. Tergite IX apparently longer than broad, length/width ratio about 4/3 or more............................................................. 3 3. Tergite IX length/width ratio about 4/3. Form of tergite IX— Fig. 8 . Gonostylus stout, with a thorn-like apical spine ( Colless 1962 : Fig. 1c )........................................................................ Ch. cavernae Colless - Tergite IX length/width ratio about 5/3. Form of tergite IX— Fig. 9 . Gonostylus not stout, elongated in ventral view, with elongated sharp apical spine ( Figs 5–6 )................................. Ch. lagangensis , Kazandzhieva & Bechev , sp. n. 4. Fore tibia without apical spur......................................................... Ch. oligoradiata (Papp) - Fore tibia with very short apical spur....................................... Ch. shennonggongensis Amorim & Niu