Polyrhachis (Cyrtomyrma) obsidiana Karawajew, 1927a: 50, w, q, m. Junior primary homonym of Polyrhachis (Myrma) gagates subsp. obsidiana Emery, 1921: 21. Replacement name: Polyrhachis (Cyrtomyrma) coronata Santschi, 1928: 140. Current status: junior synonym of Polyrhachis goramensis Emery, 1887: 239, w, Indonesia (Goram Isl.). Synonymy: Kohout, 1998: 527. Type locality(-ies): “ Amboina, 19.II.1913 (Nr. 2496), zahlreiche ww.—Ebenda (Nr. 2479, 2490, 2497), ww, qq und mm”. Original Karawajew label(-s): “ Polyrhachis (Cyrtomyrma) / obsidiana Karavaev / typus. Amboina, 2497 / Karavaev.” and “ Polyrhachis (Myrmhopla) / coronata Sant. (n. nom) / Amboina, Karavaev, 2497 ”; “ Polyrhachis (Cyrtomyrma) / obsidiana Karavaev, typus / Amboina, 2497, Karavaev” and “ Polyrhachis (Cyrtomyrma) / coronata Sant. (n. nom.) / Amboina, Karavaev, 2497 ”; “ Polyrhachis (Cyrtomyrma) / coronata Sant. (n. nom.) / Amboina, Karavaev, 2496 ”; “ Polyrhachis (Cyrtomyrma) / coronata Sant. (n. nom.) / Amboina, Karavaev, / 2496+2497”. Material: SYNTYPES, 18 w, 9 q (newly mounted, IN 314/6/1), 544 w, 190 q, 1 m, 1 pupa (in alcohol, IN 314/ BAMS 1/Karaw40–46, 56–58, 67, 68).

Published as part of Martynov, Alexander V. & Radchenko, Alexander G., 2016, Karawajew's ant type specimens (Hymenoptera, Formicidae) in the National Museum of Natural History of the National Academy of Sciences of Ukraine, pp. 244-254 in Zootaxa 4097 (2) on page 250, DOI: 10.11646/zootaxa.4097.2.6, http://zenodo.org/record/255767