Hylekobolus goodmani 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: 109-111

publication ID

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

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scientific name

Hylekobolus goodmani Wesener

sp. n.

Hylekobolus goodmani Wesener   , sp. n.


Material examined: 6 ♂, 3 ♀ Holotype: 1 ♂ (hind end missing), FMMC 7936, Province Toliara, RNI Andohahela parcel I, 440 m, rainforest, 24°37.6’ S, 46°45.9’ E, leg. S. Goodman, 19–28.X.1995 GoogleMaps   . Paratypes: 2 ♂, 1 imm., FMMC 8190, Province Toliara, RNI Andohahela parcel I, 1200 m, rainforest, 24°35.0’ S, 46°44.1’ E, leg. S. Goodman, 7–17.XI.1995 GoogleMaps   ;

Other material examined: 2 ♂, 1 ♀, FMMC 8191, same data as previous   ; 1 ♂, 2 ♀, FMMC 8202, RNI d’ Andohahela parcel 1, 1875 m, montane rainforest, 24°33.7’ S, 46°43.3’ E, pitfall traps, leg. S. Goodman, 5.XII.1995 GoogleMaps   .

Differential diagnosis: the gonopods clearly identify this species ( Figs 59 View Figure 59 D–G). H. goodmani   is quite similar in colour to the sympatric H. montanus   sp. n. The latter, however, is much larger and has completely different posterior gonopods.

Description. Measurements: male holotype with 49 rings, 55 mm long, 4.7–4.9 mm wide.

Coloration: head, median part of collum, anterior 3/4 of body rings and anterior half of anal segment dark grey ( Fig. 59A View Figure 59 ). Posterior margin of body rings, telson and margins of collum light brown ( Fig. 59C View Figure 59 ). Legs light brown, antennae darker grey ( Fig. 59B View Figure 59 ). Eyes with 40–44 ocelli ( Fig. 59A View Figure 59 ).

Anterior gonopod sternite basally wide, apically elevated into a rectangular lobe with a well-rounded tip ( Fig. 59D View Figure 59 ). Mesal process of coxite slender and protruding ( Fig. 59D View Figure 59 ). Apical process of telopodite large and well-rounded. Retrorse margin slender, widely projecting above telopodite margin ( Fig. 59F View Figure 59 ), basally of apical process not projecting ( Fig. 59F View Figure 59 ).

Posterior gonopod telopodite bent 90° ( Fig. 59G View Figure 59 ). Projection absent from lateral margin (w, Fig. 59E View Figure 59 ). Apical process (x) basally extraordinary slender, only twice as wide as sperm canal ( Fig. 59E View Figure 59 ). Projection of sperm canal (z) long and slender, running parallel to apical process ( Fig. 59G View Figure 59 ). Tip sharp-edged. Membranous lobe (y) large and well-rounded ( Fig. 59E View Figure 59 ).

Distribution and ecology: this species is only known from the Anosy Mountains, north of the Isaka-Ivondro corridor ( Fig. 54 View Figure 54 ).

Etymology: goodmani   , adjective, named after Dr. Steven M. Goodman who collected this and numerous other remarkable Malagasy millipede species.