Alluviobolus laticlavius Wesener, 2009

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. nov.

Alluviobolus laticlavius Wesener View in CoL , 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 litter GoogleMaps . 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. 44C View 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 44 View Figure 44 A–C). Eyes with circa 25 ocelli arranged in five rows ( Fig. 44A View Figure 44 ). Antennae protruding back to ring 5 ( Fig. 44A View Figure 44 ). Male coxal processes only present on coxae 3 and 4 ( Fig. 57B View Figure 57 ). Processes slen- der, bended posteriorly and protruding above coxa of adjacent leg. Preanal process absent ( Fig. 44C View Figure 44 ).

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

Posterior gonopods: telopodite without a membranous fringe ( Fig. 44H View Figure 44 ). Apical sclerite (x in Fig. 44H View Figure 44 ) slender, triangular, regularly protruding into a slender, acute tip ( Fig. 44F View 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. 43 View 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.

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