Ostinobolus montanus Wesener &amp; Enghoff &amp; Sierwald 2009, sp. n.
Creators: name: Wesener, Thomas
name: Enghoff, Henrik
name: Sierwald, Petra
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Spirobolida
Pachybolidae
Ostinobolus

description: <i>Ostinobolus montanus</i> Wesener, sp. n. urn:lsid:zoobank.org:act: C67BDE0C-0745-470A-8A2B-01D63253BCC5 <b>Material examined:</b> 6 &amp;male;, 2 &amp;female; <i>Holotype:</i> 1 &amp;male; (50 mm long), FMMC 8201, Province Toliara, RNI Andohahela, parcel I, 1875 m, 24°33.7’ S, 46°43.3’ E, camp 5, leg. S. Goodman, 27.XI– 5.12.1995. <i>Paratypes:</i> 1 &amp;male;, 2 &amp;female;, FMMC 7971, RNI Andohahela, parcel I, camp 4, 1500 m, 24°32.2’ S, 46°43.9’ E, leg. S. Goodman, 17–27.XI.1995; 1 &amp;male;, FMMC 13610, RNI Andohahela, parcel I, camp 3, 1200 m, 24°35.0’ S, 46°44.1’ E, leg. S. Goodman, 7–17.XI.1995, pitfall traps. <b>Other material examined:</b> 3 &amp;male;, CAS BLF 5015 (fm057), RNI Andohahela, Col du Sedro, 3.8 km 113° ESE Mahamavo, montane rainforest, 900 m, 24°45’50’’ S, 46°45’6’’ E, leg. B. L. Fisher et al., 21–25.I.2002. <b>Differential diagnosis:</b> the posterior gonopods of <i>O. montanus</i> sp. n. are unique within the Malagasy Spirobolida (Figs 51E, G). For a comparison of <i>O. stellaris</i> and <i>O. montanus</i>, see above. <b>Description.</b> <i>Measurements</i>: males with 39 or 40 rings, circa 46–52 mm long (broken), 3.8 mm wide. Females (probably immature) with 40 rings, 4.1 mm wide. <i>Coloration</i> faded in alcohol. Antennae, legs and body rings ventral of ozopore opening reddish (Figs 51 A–C). Head greyish (Fig. 51A). Specimens dorsally with a wide, orange stripe flanked by a wide black area extending up to opening of ozopores. <i>Eyes</i> with circa 25 ocelli arranged in five rows (Fig. 51A). <i>Antennae</i> protruding back to ring 5 (Fig. 51A). <i>Male coxal processes</i> only on coxae 3 and 4, short and conical (Fig. 51B). <i>Preanal process</i> absent (Fig. 51C). <i>Anterior gonopod</i> sternite with extraordinarily wide shoulders. Lobe triangular, broadly rounded (Fig. 51D). Sternite tip longer than coxite. Coxite and telopodite inconspicuous, processes absent (Fig. 51F). <i>Posterior gonopods</i>: basal stem slender and elongated, 5.8 times longer than wide (Fig. 51G). Apical part of telopodite oval (Fig. 51E). Inner margin consisting of a thin membranous area; arm-like projections absent (<i>x</i>, <i>y</i> in Fig. 51E). Telopodite apically with a large, swollen membranous area. Sperm canal slightly projecting above telopodite margin (Fig. 51G). <b>Intraspecific variation:</b> too few specimens are known to evaluate the intraspecific variation. The sexual dimorphism in size seems to be less well-developed than in <i>O. rufus</i>. <b>Distribution and ecology</b> : only known from the Andohahela rainforest north of the Isaka-Ivondro corridor (Fig. 49). Specimens were collected from 900–1850 m. <b>Etymology:</b> <i>montanus</i>, adjective, refers to the montane rainforest where this species was collected.
description: Published as part of <i>Wesener, Thomas, Enghoff, Henrik &amp; Sierwald, Petra, 2009, Review of the Spirobolida on Madagascar, with descriptions of twelve new genera, including three genera of ' fire millipedes' (Diplopoda), pp. 1-128 in ZooKeys 19 (19)</i> on pages 93-94, DOI: 10.3897/zookeys.19.221, http://zenodo.org/record/576503