Colossobolus litoralis 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 : 32-35

publication ID 10.3897/zookeys.19.221

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Colossobolus litoralis Wesener

sp. nov.

Colossobolus litoralis Wesener View in CoL , sp. n.

Material examined: 4 ♂, 1 ♀ Holotype: 1 ♂ (132 mm long), ZSM FGZC 1705, Madagascar, Province Antsiranana, Forêt d’Orangea , 10 m, littoral rainforest, 12°15’ S, 49°22’ E, leg. S. Megson, 20.II.2008, pitfall trap GoogleMaps . Paratypes: 3 ♂, 1 ♀, FMMC 3919, Forêt d’Orangea , 90 m, littoral rainforest, 12°15’32’’ S, 49°22’29’’ E, leg. Fisher, Griswold et al., 22–28.II.2001 GoogleMaps .

Differential diagnosis: the special-shaped anterior and posterior gonopods of C. litoralis are a unique character.

Description. Measurements: males with 51 body rings, 132–138 mm long, 11.0– 11.6 mm wide. Female with 51 body rings, 128 mm long, 12.9 mm wide.

Coloration affected by alcohol. Head, antennae, legs and telson red ( Fig. 17 View Figure 17 ). Pro- and anterior part of mesozona dark brown, posterior part of meso- and metazonites red.

Antennae protruding back to ring 3 ( Fig. 18A View Figure 18 ). Male coxal processes on coxae 3 and 4 weakly developed, on coxae 5–7 barely visible ( Fig. 18C View Figure 18 ). Preanal process wellrounded, not projecting ( Fig. 18B View Figure 18 ).

Anterior gonopod sternite elongated into a wide, broadly rounded lobe ( Fig. 18E View Figure 18 ). Mesal process of coxite prominent, protruding into a long wide lobe with a wellrounded tip, lobe only slightly shorter than telopodite process ( Fig. 18E View Figure 18 ). Telopodite process long and well-rounded. Mesal margin laterally sharp, at mid-length conspicuously protruding into a long and well-rounded process ( Fig. 18F View Figure 18 ).

Posterior gonopod telopodites positioned parallel to one another. Coxite branch absent ( Fig. 19A View Figure 19 ). Telopodite lateral branch very slender, straight, tapering towards pointed tip ( Fig. 18A View Figure 18 ). Central membranous area present as a short, wide, well-round- ed knob ( Fig. 19B View Figure 19 ). Main branch much longer than lateral branch, basally divided into two parts. Inner part developed as a short, slender, sclerotized process, apically tapering, with a pointed tip. Lateral part prominently elongated into large, flag-like membranous areas, extending beyond telopodite ( Figs 19A, B View Figure 19 ).

Distribution and ecology: C. litoralis is only known from the littoral forest of Forêt d’Orangea ( Fig. 10 View Figure 10 ).

Etymology: litoralis , adjective, refers to the only known site were this species occurs, the littoral forest of Forêt d’Orangea.

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