Julus lignaui Verhoeff, 1910

Evsyukov, Aleksandr, Golovatch, Sergei & Reip, Hans S., 2018, The millipede genus Julus Linnaeus, 1758 in the Caucasus (Diplopoda: Julida: Julidae), Zootaxa 4461 (1), pp. 89-117: 104-105

publication ID

https://doi.org/10.11646/zootaxa.4461.1.7

publication LSID

lsid:zoobank.org:pub:3FACE488-20DC-46A4-A511-026B7F2DBEA2

persistent identifier

http://treatment.plazi.org/id/610E87FB-9319-FF8A-FF0D-F58DFEF319DD

treatment provided by

Plazi

scientific name

Julus lignaui Verhoeff, 1910
status

 

Julus lignaui Verhoeff, 1910 

Figs 1EView FIGURE 1, 2EView FIGURE 2, 3J–MView FIGURE 3, 6A–DView FIGURE 6, 11View FIGURE 11, 14EView FIGURE 14, 15EView FIGURE 15, 16EView FIGURE 16, 18AView FIGURE 18, Map 1

Julus terrestris  — Lignau, 1903: 113 (R); Muralewicz, 1913: 231 (R).

Julus scandinavius  — Lignau, 1903: 138 (R).

Julus ligulifer  — Attems, 1907: 3 (M).

Julus lignaui Verhoeff, 1910: 353  (D).

Micropodoiulus lignaui  — Lignau, 1915: 380 (R).

Julus lignaui  — Lang, 1959: 1791 (M); Kobakhidze, 1965: 393 (M); Lokšina and Golovatch, 1979: 386 (M); Talikadze, 1984: 143 (M).

Material examined. 1 male, 3 females ( ZMUMAbout ZMUM), Russia, Krasnodar Prov., 11 km N of Krasnaya Polyana, S spur of Mt Chugush , subalpine meadow, 43°46’29”N, 40°12’30”E, 2000 m a.s.l., 22.VIII.2014, leg. K. Makarov and AGoogleMaps  . Matalin; 1 male ( SMNGAbout SMNG), Yatyrgvarta Ridge, hut N of Gora Armovka , 43.8908°N, 40.6631°E, 1830 m a.s.l., sparse deciduous forest ( Betula, Sorbus  ) with hight vegetation, 19.VIII.2012, leg. F. Walther.GoogleMaps 

1 male, 3 females ( ZMUMAbout ZMUM), Russia, Karachaevo-Cherkessia , Teberda Nature Reserve , Mt Malaya Khatipara above Teberda, alpine meadow, 2700–2800 m a.s.l., VI.–VII.1981, leg. V. Onipchenko. 

1 male ( ZMUMAbout ZMUM), Abkhazia, Arabika Massif, Kamennyi Klad Mt. Range, Trekhusa Grotto , 28.VIII.2014, leg. I. Turbanov  ; 1 male, 1 female ( ZMUMAbout ZMUM), Adante Valley, near Marukh Pass , 1700–1800 m a.s.l., VIII.1984, leg. E. Kvavadze. 

3 males, 5 females (ZMUM), Georgia, Mestia, 1500 m a.s.l., Betula  and Rhododendron  on moraine, litter and under stones, 5 and 16.IX.1986, leg. S. Golovatch.

Diagnosis. Differs from other species of the genus by the following combination of characters. Main process (mp) of male coxa 2 long, with or without a small apical bulb, but always with a small caudal tooth or uncus at apex ( Figs 6A–DView FIGURE 6). Gonopodal promere (pr) narrow, round at apex, with an elongated lateral lamella (la) ( Figs 11A, 11C, 11E, 11GView FIGURE 11). Flagella (fl) wide basally, gradually attenuating towards apex ( Figs 11A, 11B, 11D, 11F, 11HView FIGURE 11). Mesomere (ms) rounded at apex ( Figs 11B, 11D, 11F, 11HView FIGURE 11). Opisthomere (op) and lateral outgrowth (lo) sharpened on top ( Figs 11B, 11DView FIGURE 11, 14EView FIGURE 14). Striations on metazonae regular and rough ( Fig. 16EView FIGURE 16). Shape and arrangement of ampullae of female vulvae much like in J. colchicus  ( Fig. 18AView FIGURE 18).

Descriptive notes. Length 23–27 mm, width 1.3–2.5 mm. Number of segments from 44+1+T to 50+1+T. Body grey with a thin, black, dorsal, axial line, venter lighter; legs light brown. Antennae and anal valves brown. Eye patches composed of ca 45 ocelli. Striations on metazonae regular and rough ( Fig. 16EView FIGURE 16).

All other characters as in J. alexandrae  , except as follows. Antennae in situ reaching back to body segment 3. Antennomeres 5 and 6 each with a corolla of bacilliform sensilla ( Fig. 1EView FIGURE 1). Each stipes of gnathochilarium with a large group of setae parabasally below mentum ( Fig. 2EView FIGURE 2).

Male leg-pair 1 ( Figs 3J–MView FIGURE 3) usually with a well-developed suture between coxa (cx) and 1-segmented telopodite remnant (te), but sometimes the suture is absent ( Figs 3J, 3LView FIGURE 3); cx with ( Figs 3J–LView FIGURE 3) or without a lateral process ( Fig. 3MView FIGURE 3); te round, with a group of thin setae. Male leg-pair 2 with three coxal processes ( Figs 6A–DView FIGURE 6). Anterolateral process (alp) short, rounded at apex. Main process (mp) long, usually with a small bulb and a caudal dentiform outgrowth at apex ( Figs 6A, 6CView FIGURE 6), but sometimes slender throughout and with a small, apical, caudal uncus ( Fig. 6BView FIGURE 6). Posterior process (pp) typically with three setae ( Fig. 6CView FIGURE 6). Penes (p) short, emarginate apically ( Figs 6A, 6CView FIGURE 6).

Promere (pr) narrow, rounded at apex, with an elongated lateral lamella (la) ( Figs 11A, 11C, 11E, 11GView FIGURE 11). Flagella (fl) wide basally, gradually attenuating towards apex ( Figs 11A, 11B, 11D, 11F, 11HView FIGURE 11).

Mesomere (ms) rounded at apex ( Figs 11B, 11D, 11FView FIGURE 11). Opisthomere (op) and lateral outgrowth (lo) pointed on top ( Figs 11B, 11DView FIGURE 11, 14EView FIGURE 14).

Ventral edge of male segment 7 with small curved lamellae bordering the gonopodal aperture ( Fig. 15EView FIGURE 15).

Female vulva (vu) narrow, apices of bursa (bu) rounded; ampullae (am1 and am2) elongated. Each coxa of female leg-pair 2 (l2) with a small pointed process ( Fig. 18AView FIGURE 18).

Remarks. A fairly rare, probably high-montane species hitherto recorded only from the Krasnodar Province and Abkhazia ( Lignau 1903; Verhoeff 1910; Lang 1959; Kobakhidze 1965; Talikadze 1984; Lokšina and Golovatch 1979). Based on geographical evidence alone, we cannot exclude the possibility that Lohmander’s (in Kobakhidze 1964) “ J. svaneticus  ” nomen nudum actually represented J. lignaui  , the only species that Lohmander (1936) failed to revise because of the lack of material. It is for this reason that we illustrate J. lignaui  well to show variations.

ZMUM

Zoological Museum, University of Amoy

SMNG

Senckenberg Museum fuer Naturkunde Goerlitz

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Julida

Family

Julidae

Genus

Julus

Loc

Julus lignaui Verhoeff, 1910

Evsyukov, Aleksandr, Golovatch, Sergei & Reip, Hans S. 2018

2018
Loc

Julus terrestris

Lignau, 1903 : 113 Muralewicz, 1913 : 231

Loc

Julus scandinavius

Lignau, 1903 : 138

Loc

Julus ligulifer

Attems, 1907 : 3

Loc

Julus lignaui

Verhoeff, 1910 : 353

Loc

Micropodoiulus lignaui

Lignau, 1915 : 380

Loc

Julus lignaui

Lang, 1959 : 1791 Kobakhidze, 1965 : 393 Lokšina and Golovatch, 1979 : 386 Talikadze, 1984 : 143