The millipede tribe Brachyiulini in the Caucasus (Diplopoda, Julida, Julidae) Author Vagalinski, Boyan Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences, 2 Yurii Gagarin Street, 1113, Sofia, Bulgaria boyan_vagalinski@excite.com Author Golovatch, Sergei I. Institute for Problems of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia text ZooKeys 2021 2021-08-30 1058 1 127 http://dx.doi.org/10.3897/zookeys.1058.68628 journal article http://dx.doi.org/10.3897/zookeys.1058.68628 1313-2970-1058-1 654932353DDB4E1B8848EAB69F2C20FD 61FB9E86BEE45968AAC868B21AF7ED86 Omobrachyiulus geniculatus (Lohmander, 1928) Chromatoiulus geniculatus Lohmander, 1928: 236-238, figs 12-14. Chromatoiulus (Omobrachyiulus) geniculatus : Lohmander, 1936: 129-131, figs 108-110; Lang 1959 : 1791. Omobrachyiulus geniculatus : Vagalinski and Lazanyi 2018 : 97. Material examined. Georgia : 1 ♂ (SMNG), Mtskheta-Mtianeti , Stepantsminda : mouth of river Snotskali , 42.6339°N , 44.6258°E , 1750 m a.s.l. , 07.X.2012 , F. Walther leg. , 1 ♂ (SMNG), Mtskheta-Mtianeti , Darial Gorge at rkm 8/131, 42.7039°N , 44.6264°E , 1480 m a.s.l. , 10.VIII.2014 , F. Walther leg. ; Russia : 3 ♂♂ , 1 ♀ , 6 juv. (ZMUM), Karachay-Cherkess Republic , Teberda Nature Reserve , Kizgich Canyon N of Arkhyz , near a riverine, Alnus and Betula wet forests, under bark and stones, 1450-1500 a.s.l., 5.VI.1985 , SIG leg.; 1 ♂ (ZMUM), Chechen Republic , Assa Valley , ca. 9 km SSW of Muzhichi , 800 m , Fagus , Alnus , Carpinus etc. forest, in litter, under bark and stones, 15.VII.1986 , SIG leg. Diagnosis. A species of Omobrachyiulus differing from congeners by the following combination of opisthomere characters: basoposterior process in the shape of a strongly pronounced lobe forming a nearly right-angled corner at base, ending with a simple and smooth apical outgrowth with a blunt tip; anterior process shaped as a stout spine; mesomeroidal lobe strongly pronounced; solenomere simple, bent strongly caudad. Previous records from the Caucasus. Russia , Karachay-Cherkess Republic, by Bolshoy Zelenchuk River (type locality), "Post Akssaut" [probably on Aksaut River] ( Lohmander 1936 ); Kabardino-Balkar Republic, Bisinghi [Bezengi] Valley ( Vagalinski and Lazanyi 2018 ). General distribution. GRCA. Remark. The species is new to the fauna of Georgia.