Hylekobolus rufus 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: 104-106

publication ID

http://doi.org/ 10.3897/zookeys.19.221

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scientific name

Hylekobolus rufus Wesener

sp. n.

Hylekobolus rufus Wesener  , sp. n.


Material examined: 14 ♂, 8 ♀, 1 imm. Holotype: 1 ♂ (60 mm long), FMMC 8188, Province Fianarantsoa, PN Midongy, Mt. Papango , 3.5 km SW Befotaka, rainforest, 1250 m, 23°50.3’ S, 46°57.5’ E, leg. S. Goodman, 2–7.XI.1997GoogleMaps  . Paratype: 1 ♀, FMMC 8188, same data as holotypeGoogleMaps  ; 1 ♂, 1 imm., FMMC 6172, Province Fianarantsoa, PN Midongy, Mt. Papango , 2.5 km SW Befotaka, rainforest, 875 m, 23°50.1’S, 46°57.8’E, leg. S. Goodman, 26–31.X.2003, pitfall trapGoogleMaps  .

Other material examined: 2 ♂, 1 ♀, FMMC W092, Province Toliara, Vohimena Eastern Slope, Enato , rainforest, 24°53’0.25” S, 46°59’2.77” E, leg. T. Wesener et al., 27.V.2007GoogleMaps  ; 2 ♂, MNHN, Province Fianarantsoa, Tolongoina, route d’Ifanadiana , Fort Carnot , 21°33’ S, 47°31’ E, Rec. Blanc, 18.V.1964GoogleMaps  ; 1 ♂, MNHN, Province Fianarantsoa, Befotaka (p. de Farafangana), 600 m, Région montagneuse boisée, 23°49’ S, 46°59’ E, leg. entrée 17–1927, R. Decary, 10.VIII.1926GoogleMaps  ; 7 ♂, 6 ♀, CAS NoNumber, Province Fianarantsoa, PN Ranomafana , Talatakely , 21°14.9’ S, 47°25.6’ E, leg. C. Griswold et al., 19–30.IV.1998GoogleMaps  .

Differential diagnosis: H. rufus  differs from all other Hylekobolus  species in a unique combination of characters: collum red ( Fig. 56AView Figure 56), posterior gonopod at lateral margin (w) lacking projection, apical process (x) wide ( Fig. 56EView Figure 56).

Description. Measurements: males with 50–52 rings, 55–65 mm long, 4.1–4.8 mm wide. Females with 50 or 51 rings, circa 63 mm long, 5.7 mm wide.

Coloration in numerous samples affected by alcohol. Head, collum, antennae, legs, metazonites of body rings and posterior part of telson including anal valves and subanal scale red ( Figs 56A, CView Figure 56). Anterior part of body rings and telson dark grey ( Figs 56A, CView Figure 56). Eyes with 32–34 ocelli ( Fig. 56AView Figure 56).

Anterior gonopod sternite basally wide, completely rectangular, apically even slightly wider than basally ( Fig. 56DView Figure 56). Mesal process of coxite wide and only slightly protruding ( Fig. 56DView Figure 56). Apical process of telopodite large and well-rounded. Retrorse margin wide, projecting above telopodite margin ( Fig. 56FView Figure 56) but not protruding basally of apical process ( Fig. 56FView Figure 56).

Posterior gonopods telopodite bent 90° ( Fig. 56GView Figure 56). Lateral margin without a projection (w, Fig. 56EView Figure 56). Apical process (x) wide ( Fig. 56EView Figure 56). Membranous lobe (y) large and

rectangular ( Fig. 56EView Figure 56). In posterior view, an additional small, sclerotized lobe present apically of membranous lobe ( Fig. 56GView Figure 56). Projection of sperm canal (z) straight, as long as apical process ( Fig. 56GView Figure 56).

Distribution and ecology: H. rufus  is the Hylekobolus  species with the largest area of distribution. It occurs in Southeastern Madagascar from the eastern slopes of the Vohimena range, Midousy Mountains up to Tolongoina ( Fig. 54View Figure 54).

Etymology: rufus  , adjective, refers to the reddish colour pattern ( Fig. 56AView Figure 56).


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California Academy of Sciences