Ostinobolus 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: 90-92

publication ID

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

publication LSID

lsid:zoobank.org:pub:C473F9F6-1AE7-4B3F-B17F-CA1C2709010C

DOI

http://doi.org/10.5281/zenodo.3791459

persistent identifier

http://treatment.plazi.org/id/1772122E-785E-FF9D-FF01-3A78ACA4E815

treatment provided by

Plazi

scientific name

Ostinobolus rufus Wesener
status

sp. n.

Ostinobolus rufus Wesener   , sp. n.

urn:lsid:zoobank.org:act:4F757E14-FDBD-424D-AC84-F845D06D5C46

Material examined: 47 ♂, 71 ♀, 112 imm. Holotype: 1 ♂ (50 mm long, dissected), FMMC W042 A, Madagascar, Andohahela , Malio, rainforest, 24°55.810’ S, 46°46.343’ E, leg. Wesener et al., 30.V.2007 GoogleMaps   . Paratypes: 6 ♂, 8 ♀, 13 imm., FMMC W042 A, same data as holotype GoogleMaps   ; 1 ♂, 1 ♀, 2 imm., CAS W042 View Materials A, same data as holotype GoogleMaps   ; 1 ♂, 1 ♀, 2 imm., ZMH W042 View Materials A, same data as holotype GoogleMaps   .

Other material examined: 6 ♂, 10 ♀, 18 imm., W042A, same data as type material, University Antananarivo   ; 1 ♂, 3 ♀, 2 imm., FMMC W009 A, Ambatotsirongorongo Mountain, Petit Lavasoa , 668 m, rainforest, 25°05.021’ S, 46°46.110’ E, leg. Wesener et al., 21.V.2007 GoogleMaps   ; 3 ♀, 2 imm., W009A, same data as previous, University Antananarivo GoogleMaps   ; 2 ♂, 2 ♀, 6 imm., FMMC W028 A, Sainte Luce , S9, 12 m, littoral forest on sand, 24°46.769’ S, 47°10.288’ E, leg. Wesener et al., 01.VI.2007 GoogleMaps   ; 2 ♂, 2 ♀, 6 imm., W028A, same data as previous, University Antananarivo GoogleMaps   ; 1 ♂, 2 ♀, 14 imm., FMMC W050 A, Andohahela, Isaka-Ivondro Sud , 46 m, rainforest, 24°49.690’ S, 46°51.971’ E, leg. Wesener et al., 08.VI.2007 GoogleMaps   ; 2 ♀, 14 imm., W050A, same data as previous, University Antananarivo GoogleMaps   ; 4 ♂, 5 ♀, 5 imm., FMMC W080, Manantantely , rainforest, 24°59’17.14” S, 46°55’27.95” E, leg. Wesener et al., 06.VI.2007 GoogleMaps   ; 4 ♂, 4 ♀, 6 imm., W080, same data as previous, University Antananarivo GoogleMaps   ; 4 ♂, 3 ♀, 8 imm., FMMC W086, Ivorona , 114 m, rainforest, 24°50.026’ S, 46°56.943’ E, leg. Wesener et al., 23.V.2007 GoogleMaps   ; 1 ♂, 1 ♀, ZMUC W086 View Materials , same data as previous GoogleMaps   ; 5 ♂, 3 ♀, 7 imm., W086, same data as previous, University Antananarivo GoogleMaps   ; 1 ♂, 2 ♀, 5 imm., FMMC W100, Ambatotsirongorongo Mountain, Grand Lavasoa , rainforest, 25°5’10.23” S, 46°44’55.93” E, leg. Wesener et al., 14.VI.2007 GoogleMaps   ; 2 ♀, 8 imm., W100, same data as previous, University Antananarivo GoogleMaps   ; 1 ♂, 4 W, FMMC, Sainte Luce , littoral forest on sandy soil, 24°47’ S, 47°10’E, leg. T. Wesener, 06.IV.2003, ex wet leaf litter GoogleMaps   ; 1 ♂, FMMC 6 B TIM, Vohimena Mountains, Mt. Illapiry , 500 m, station 6, on ridge w/20° slope, E of summit, some granite outcrops, 24°51’33” S, 47°00’27” E, leg. K. Emberton, 31.I.1995 GoogleMaps   ; 3 ♂, 1 ♀, FMMC 13602, Andohahela, Vasiha , slope 15°E, 24°55’19’’ S, 46°44’45’’ E, leg. K. Emberton, 6.II.1995 GoogleMaps   ; 1 ♂, FMMC 13607, Vohimena Mountains, Mt. Illapiry , 400 m, station 7, on 45° slope, SSE of summit, many granite outcrops, 24°51’27” S, 47°00’38” E, leg. K. Emberton, 31.I.1995 GoogleMaps   ; 1 ♀, FMMC 13606, same data as previous GoogleMaps   ; 1 ♂, FMMC 13608, Esetra, Mt. Mahermana , 340 m, station 1, summit, 0° slope, frequent granite outcrops, 24°26’12” S, 47°13’13” E, leg. K. Emberton, 25.I.1995 GoogleMaps   ; 1 ♀, FMMC 13605, same data as previous GoogleMaps   .

Differential diagnosis: Ostinobolus rufus   shares the star-like tip of the posterior gonopod ( Fig. 48J View Figure 48 ) only with O. stellaris   sp. n. The former differs from the latter in the higher number of body rings, differences in the anterior and posterior gonopods including a conspicuous longer posterior gonopod in O. rufus   than in O. stellaris   sp. n.

Description. Measurements: males with 46–49 rings, 43–53 mm long, 3.8–4.4 mm wide. Females with 46–48 rings, 56–65 mm long, 5.5–6.3 mm wide.

Coloration red ( Figs 48 View Figure 48 A–D). Rings dorsally with an irregular yellow stripe. Mesozonites and part of metazonites between stripe and opening of ozopores darker blackish ( Fig. 48C View Figure 48 ).

Eyes with circa 25 ocelli arranged in five rows ( Fig. 48A View Figure 48 ). Antennae protruding back to ring 5 ( Fig. 48A View Figure 48 ). Male coxal processes only on coxae 3 and 4, short and conical. Prefemur 3–5 with hollow invaginations ( Fig. 48B View Figure 48 ). Preanal process absent ( Fig. 48D View Figure 48 ).

Anterior gonopod sternite basally wide, apically elevated into a lobe with a slender, rectangular tip ( Fig. 48G View Figure 48 ). Sternite tip almost as high as telopodite. Coxite not extending beyond sternite, inconspicuous ( Fig. 48H View Figure 48 ). Telopodite on posterior side apically with a small, erect process. Process not projecting above telopodite margins ( Fig. 48H View Figure 48 ).

Posterior gonopods: basal stem of telopodite 3.6 times longer than wide ( Fig. 48J View Figure 48 ). Apical part of telopodite star-shaped ( Fig. 48I View Figure 48 ). At mesal margin with three star arms (x, y, z in Fig. 48J View Figure 48 ). Telopodite apically with a small membranous process (x in Fig. 48I View Figure 48 ) and a well-developed membranous fringe (w).

Intraspecific variation: although specimens were collected from no less than nine localities, spread over rainforest in the whole southeastern region of Madagascar ( Fig. 49 View Figure 49 ), no intraspecific variation was observed. The numbers of rings varied within the same population as much as between populations. Females are always larger and thicker than males.

Distribution and ecology: this species could be recorded from each single inventoried rainforest south of the Andohahela Isaka-Ivondro corridor ( Fig. 49 View Figure 49 ). It was not found (yet?) in the highly endangered ( Vincelette et al. 2003) littoral forest of Mandena.

Etymology: rufus   , adjective, refers to the characteristic red colour pattern.

CAS

California Academy of Sciences

ZMH

Zoologisches Museum Hamburg

ZMUC

Zoological Museum, University of Copenhagen