Omobrachyiulus divaricatus
Creators: name: Vagalinski, Boyan
name: Golovatch, Sergei I.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Julida
Julidae
Omobrachyiulus
Omobrachyiulus divaricatus

description: Omobrachyiulus divaricatus (Lohmander, 1936) Fig. 13 Chromatoiulus (Omobrachyiulus) divaricatus Lohmander, 1936: 135-140, figs 117-119. Chromatoiulus (Omobrachyiulus) divaricatus: Lang 1959: 1791. Chromatoiulus divaricatus: Kobakhidze 1964: 191; 1965: 394; Bababekova 1996: 90. Megaphyllum divaricatum: Talikadze 1984: 143. Omobrachyiulus divaricatus: Vagalinski and Lazányi 2018: 96-97, fig. 89; Kokhia and Golovatch 2018: 41; 2020: 206. Material examined. <b>Armenia</b>: 3 &amp;male;&amp;male;, 2 &amp;female;&amp;female; (ZMUM), "Prov. Zori, Mount Polat", 30.VIII.1925, A. Schelkovnikov leg. [probably H. Lohmander det.]. <b>Georgia</b>: 1 &amp;male; (SMNG), Khevsureti, ca. 200 m below Shatili, 42°39'34.8"N, 45°09'55.0"E, 1415 m a.s.l., 12-15.IX.2009, F. Walther leg.; 1 &amp;male;, 4 &amp;female;&amp;female; (SMNG), Guria, Chkhakoura, towards Bakhmaro, 41.8797°N, 42.3511°E, 1780 m a.s.l., 21.VIII.2014, F. Walther leg.; many &amp;male;&amp;male;, &amp;female;&amp;female;, juv. (SMNG), Samtskhe-Javakheti, Mtsvanne Monastery, 41.8094°N, 43.3122°E, 840 m a.s.l., 24.VIII.2014, F. Walther leg.; 4 &amp;male;&amp;male;, 3 &amp;female;&amp;female;, 3 juv. (SMNG), Samegrelo-Zemo Svaneti, 3 km NE of Ushguli, 42.9347°N, 43.0358°E, 19.VIII.2014, F. Walther leg.; 1 &amp;male;, 7 &amp;female;&amp;female; (SMNG), Samtskhe-Javakheti, Bakuriani, ca. 9 km to Tskhratskaro, Ugheltekhili Pass, 41.7070°N, 43.5028°E, 2210 m a.s.l., 22.VIII.2014, F. Walther leg.; 1 &amp;male; (SMNG), Imereti, Sairme, towards Zekari Pass, 41.8572°N, 42.7894°E, 1920 m a.s.l., 22.VIII.2014, F. Walther leg.; 1 &amp;male; (SMNG), Mtshketa-Mtianeti, Zhinvali towards Shatili, at rkm 41/65, 42.4031°N, 44.9281°E, 1090 m a.s.l., 8.VIII.2014, F. Walther leg.; 1 &amp;male; (SMNG), Khashuri, Akhaldaba, Nedzvi Managed Reserve, Nedzvistskali River, 41.9082°N, 43.5151°E, humid coniferous (<i>Picea</i>) forest, VI.2011, L. Mumladze leg.; 2 &amp;male;, 1 &amp;female; (SMNG), AR Ajara, Goderdzis Ugheltekhili Pass, W slope, 41.6483°N, 42.4936°E, 1730 m a.s.l., 3.X.2012, F. Walther leg.; 1 &amp;male;, 2 &amp;female;&amp;female; (SMNG), Racha-Lechkhumi and Kvemo Svaneti, 3 km S of Mravaldzali, 41.8797°N, 42.3511°E, 1900 m a.s.l., 9.X.2011, F. Walther leg.; many &amp;male;&amp;male;, &amp;female;&amp;female;, juv. (SNMG), Shida Kartli, Gagluantubani, Tana Valley, 24.1 road-km upstream Didi Ateni, 41.8508°N, 43.8658°E, 1290 m a.s.l., 16.IX.2011, F. Walther leg.; 3 &amp;male;&amp;male;, 8 &amp;female;&amp;female; (ZMUM), near Manglisi, <i>Quercus</i> forest, 12.XI.1984, E. Kvavadze leg.; many &amp;male;&amp;male;, &amp;female;&amp;female;, juv. (ZMUM), Racha, Oni District, N of Utsera, deciduous forest near a spring, rock, in litter, 20.IX.1981, SIG leg.; 1 &amp;male;, 1 &amp;female; (ZMUM), Tsodoreti near Tbilisi, in litter, 24.XII.1974, unknown collector; 2 &amp;male;&amp;male;, 3 &amp;female;&amp;female; (ZMUM), Mukhura, ca. 14 km E of Tkibuli, 650 m, <i>Castanea</i>, <i>Acer</i> etc. forest, in litter, under logs, 18.X.1987, SIG leg.; many &amp;male;&amp;male;, &amp;female;&amp;female;, juv. (ZMUM), Republic of South Ossetia - Alania, 15 km E of Kvaisi, Suram Mountain Ridge, Ertso Pass, ca. 1000 m, deciduous bush along spring, in litter and under stones, 20.X.1981, SIG leg.; 2 &amp;male;&amp;male;, 3 &amp;female;&amp;female;, 2 juv. (ZMUM), 40 km W of Mestia, Kherkhvashi E of Nakra, 1250-1700 m, <i>Quercus</i>, <i>Fagus</i>, <i>Carpinus</i>, <i>Picea</i>, <i>Abies</i> etc. forest, litter and bark, 21.VIII-21.IX.1986, SIG leg.; 1 &amp;male;, 5 &amp;female;&amp;female; (ZMUM), Kutaisi District, 8 km E of Orpiri, environs of Cave Tsutskhvati, deciduous forest, rock, litter, 24.X.1981, SIG leg. Diagnosis. A species of <i>Omobrachyiulus</i> very similar to <i>O. unugulis</i> sp. nov. by the general shape of the promere and by the opisthomere (Fig. 13) having a slender, rod-like, anterior process directed distad, a broad, strongly flattened, multilobed, apical outgrowth of the basoposterior process, and the similarly finely and asymmetrically bifurcate solenomere. Differs from the latter species by the following gonopodal characters: promere with a more narrowly rounded apex; apical outgrowth of opisthomeral basoposterior process nearly symmetrical, tripartite, vs. the same being asymmetrically bilobed, forming a dentate distal part and a thumb-like lateral part in <i>O. unugulis</i> sp. nov.; anterior process of opisthomere equal to or slightly higher than solenomere, vs. the same being significantly shorter than solenomere in <i>O. unugulis</i> sp. nov.; solenomere abruptly bent caudad rather than nearly straight and directed almost completely distad; and by the male hypoproct being penta- or septidentate rather than tridentate. Descriptive notes. <i>Opisthomere</i> (Fig. 13A-C): basoposterior process weakly pronounced, ending in a nearly symmetrical tripartite apical outgrowth; anterior process very long and slender rod-like, reaching the level of, or slightly exceeding, solenomere; mesomeroidal lobe rather well-pronounced, with a rounded apex, not forming an apicolateral part; two rows of rather small spiniform filaments at mid-section of flagellum channel; solenomere, bent abruptly distad before a very fine and slender apical process directed distocaudad. Previous records from the Caucasus. <b>Georgia</b>: shore of Lake Tabatskuri; Turkey/Georgia, Ajara, "Post Arsian" [most likely a locality in the Arsiani Range shared between Turkey and Georgia] (original localities); Ipari; Rveli; Lentekhi District: Ushguli; Koruldashi; at the foot of Mt Shkhara (Kobakhidze 1965); AR Ajara, Kintrishi Nature Reserve, mouth of Khekhpara River (Vagalinski and Lazányi 2018); <b>Armenia</b>: Dilijan (original locality). General distribution. Caucasian endemic with a broad distribution south of the Greater Caucasus watershed; not reported north of the latter.
description: Published as part of <i>Vagalinski, Boyan &amp; Golovatch, Sergei I., 2021, The millipede tribe Brachyiulini in the Caucasus (Diplopoda, Julida, Julidae), pp. 1-127 in ZooKeys 1058</i> on page 1, DOI: 10.3897/zookeys.1058.68628
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