Picea lignaui, Lohmander, 1936

Golovatch, Sergei, Evsyukov, Aleksandr & Reip, Hans, 2016, The millipede family Polydesmidae in the Caucasus (Diplopoda: Polydesmida), Zootaxa 4085 (1), pp. 1-51 : 6-10

Polydesmus (s. str.) lignaui Lohmander, 1936

Figs 2, 3D – 3G, 4B, Map 1

Polydesmus minor Lignau, 1915: 374 (D).

Polydesmus lignaui Lohmander, 1936: 11 (M), nom. nov. pro P. minor Lignau, 1915 , non P. minor Bollman, 1888 .

Polydesmus (Polydesmus) lignaui lignaui— Attems, 1940: 21 (M).

Polydesmus lignaui— Attems, 1940: 20 (D); Lang, 1959: 1790 (M); Kobakhidze, 1965: 391 (R); Lokšina and Golovatch, 1979: 384 (M); Talikadze, 1984: 143 (R); Zuev, 2014: 348 (R, D).

Polydesmus minor— Lang, 1959: 1790 (M).

Material examined. 1 male (ZMUM), RUSSIA, Krasnodar Prov., Sochi, Lazarevskoe, garden, pitfall traps, 7 – 17.VII.1986; 1 female (ZMUM), same locality, 21.VIII – 4.IX.1986, all leg. Yu. Zayats; 1 female, 2 juv. (ZMUM), Krasnodar Prov., Pass Mikhailovskii, Fagus forest, decaying log, 5.VII.1956; 1 female (ZMUM), Krasnodar Prov., Gelenjik, Fagus forest, 5.VII.1956; all leg. K. Arnoldi, all det. H. Lohmander, det. C. Dziadosz, 1968; 2 males, 1 female, 1 juv. (ZMUM), Krasnodar Prov., Severskaya Distr., 2 – 10 km S of Ubinskaya, 300 – 450 m a.s.l., Quercus , Fagus , Carpinus etc. forest, litter and under bark, 3 – 4.VII.1986, leg. S. Golovatch; 4 males, 14 females, 1 juv. (ZMUM), Karachaevo-Cherkessia, Teberda Nature Reserve, Dombai, 1700 – 1800 m a.s.l., floodplain Abies , Fagus , Picea , Betula , Acer etc. forest, litter, under bark and stones, 11.V.1985; 1 female, 4 juv. (ZMUM), same locality, Mt Mussa-Achitara, 2700 – 2800 m a.s.l., alpine meadow, under stones, 29.VII.1986; 1 male, 4 females (ZMUM), Karachaevo-Cherkessia, Teberda Nature Reserve, Gonachkhir Canyon between Teberda and Dombai, road to Klukhor Pass, 1700 – 1900 m a.s.l., Abies , Fagus , Acer etc. forest, 1.VI.1985, all leg. S. Golovatch; 1 male, 1 female, 1 subadult female (AE), Karachaevo-Cherkessia, Teberda Nature Reserve, Fagus and Carpinus forest, litter, under logs, 26.VII.2012; 1 male, 3 females, 10 juv. (AE), same locality, Teberda River valley, meadow with Fagus and Carpinus forest, 26.VII.2012, leg. D. Khisametdinova and Y. Kochetov; 3 males, 3 females (ZMUM), Kabardino-Balkaria, near Mt Elbrus, 8 km off month of Adyl-Su River, Djan-Tugan, 2150 – 2200 m a.s.l., xerophytous meadow, pitfall traps, 11 – 20.VII.1987, leg. A. Kulikov.

3 males, 2 juv. (ZMUM), ABKHAZIA, SE of Lake Ritsa, Pass Anchkho, 2000 m a.s.l., Betula and Rhododendron , litter, 16.VIII.1986, leg. S. Golovatch; 1 male, 1 female, 3 juv. (ZMUM), Sukhumi, University Campus, N42°58,4’ E41°04,04’, ca 50 m a.s.l., Encopytus, tree shaking, litter, 7.XII.2003, leg. Yu. Marusik and G. Antonova; 2 males, 3 females, 2 juv. (ZMUM), Sukhumi Botanical Garden, litter, 20.VIII.1986; 1 male, 3 females (ZMUM), Sukhumi Distr., Bzyb Valley, Pskhu, 700 – 950 m a.s.l., Fagus , Quercus , Castanea etc. forest, litter, under bark and stones, 15 – 16.VIII.1983, all leg. S. Golovatch; 1 female, 4 juv. (ZMUM), Kodor Mt. Ridge, Tkvarcheli Distr., SSE of Khojali, 1750 m a.s.l., 28.VI.1986, leg. I. Ushakov.

1 female (ZMUM), GEORGIA, Mingrelsky (= Egrissky) Mt. Range, NW slope of Mt Tsekhuri, 1500 – 1800 m a.s.l., Fagus forest, litter, 18 – 19.VIII.1988, leg. I. Belousov; 1 female (ZMUM), 10 km N of Djvari, 800 m a.s.l., Buxus , Fagus , Picea , Taxus etc. forest, litter, 20 – 21.VIII.1986; 3 females (ZMUM), Svanetia, Mestia, 1 500 m a.s.l., Betula and Rhododendron on moraine, litter and under stones, 5 and 16.IX.1986; 1 female, 1 juv. (ZMUM), same locality, under stones, 22.X.1979, all leg. S. Golovatch; 1 juv. (ZMUM), Svanetia, Mestia Distr., Lukhi N of Khaishi, Nenskra Valley, 800 m a.s.l., forest, litter, 2.IX.1986, leg. A. Ryvkin; 22 males, 14 females, 6 juv. (ZMUM), Svanetia, ca 40 km W of Mestia, Kherkhvashi E of Nakra (= Naki), 1200 – 1700 m a.s.l., Quercus , Fagus , Carpinus , Picea , Abies etc. forest, litter and under bark, 21.VIII. – 21.IX.1986; 5 males, 3 females, 2 juv. (ZMUM), same locality, above Kherkhvashi, 1900 – 2200 m a.s.l., timberline ( Rhododendron , Picea , Abies ) and subalpine meadows, 21.IX.1986, all leg. S. Golovatch.

Descriptive notes. Length ca 10 – 13 mm (male, female), width of midbody metazonae 1.25 – 1.7 (male) or 1.4 – 2.1 mm (female), metazonite to prozonite width ratio <2.0 ( Fig. 2). Live coloration usually uniformly red or redbrown to pink, in alcohol brown to faded light brown or pinkish; legs light ( Fig. 2).

All characters as in P. abchasius ( Figs 2, 3D – 3G, 4B), except as follows. Collum about as broad as head ( Fig. 2A, 2B, 2F). Paraterga 2 – 4 in female usually not upturned, subhorizontal ( Fig. 3G). Gonopod ( Fig. 4B) endomere rod typically axe-shaped apically.

MAP 1. Distribution of Polydesmus species in the Caucasus: P. abchasius (red square), P. lignaui (blue circle), P. muralewiczi (green star) and P. mediterraneus (pink triangle).