Alluviobolus laticlavius Wesener,

Wesener, Thomas, Enghoff, Henrik & Sierwald, Petra, 2009, Review of the Spirobolida on Madagascar, with descriptions of twelve new genera, including three genera of ' fire millipedes' (Diplopoda), ZooKeys 19 (19), pp. 1-128: 82-83

publication ID 10.3897/zookeys.19.221

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Alluviobolus laticlavius Wesener

sp. n.

Alluviobolus laticlavius Wesener  , sp. n.

Material examined: Holotype: 1 ♂ (39 mm long), FMMC 4065, Madagascar, Province Toliara, Petriky , 10 m, littoral subhumid forest, 25°3.73’ S, 46°52.16’ E, leg. B. L. Fisher, 22.IX.1998, sifted litterGoogleMaps  . Paratype: 1 ♀, FMMC, Province Toliara, Petriky, 10 m littoral forest on sand, in leaf litter, 25°03’ S, 46°53’ E, leg. T. Wesener, 17.IV.2003.

Differential diagnosis: the colour pattern of A. laticlavius  is unique for Alluviobolus  and also for millipedes living in Petriky, allowing a secure identification of this species. A. laticlavius  differs from A. antanosy  sp. n. in the shape of posterior gonopods and male coxal processes, although the latter species can be found just five kilometers south of Petriky. The posterior gonopods of Alluviobolus laticlavius  are quite similar to those of A. tsimelahy  sp. n. A. laticlavius  , however, differs from the latter in the shape of the male coxal processes as well as in the colour pattern.

Description. holotype with 47 body rings, 39 mm long, 3.9 mm wide.

Coloration on mesozonites faded to grey, metazonites black ( Fig. 44CView Figure 44). Rings dorsally with a wide red stripe. Legs, antennae, anal valves, subanal scale and posterior part of preanal process faded to light brown ( Figs 44View Figure 44 A–C). Eyes with circa 25 ocelli arranged in five rows ( Fig. 44AView Figure 44). Antennae protruding back to ring 5 ( Fig. 44AView Figure 44). Male coxal processes only present on coxae 3 and 4 ( Fig. 57BView Figure 57). Processes slen- der, bended posteriorly and protruding above coxa of adjacent leg. Preanal process absent ( Fig. 44CView Figure 44).

Anterior gonopod sternite elevated into a wide lobe, apically slightly tapering. Tip well-rounded ( Fig. 44EView Figure 44). Coxite and telopodite inconspicuous ( Figs 44E, GView Figure 44).

Posterior gonopods: telopodite without a membranous fringe ( Fig. 44HView Figure 44). Apical sclerite (x in Fig. 44HView Figure 44) slender, triangular, regularly protruding into a slender, acute tip ( Fig. 44FView Figure 44).

Distribution and ecology: this species is only known and possibly microendemic to the worldwide unique ( Vincelette et al. 2003) subhumid littoral forest of Petriky ( Fig. 43View Figure 43). Like other species of the genus, does A. laticlavius  lives on and in the leaf litter.

Etymology: laticlavius  , adjective, refers to the characteristic wide red stripe of this species.