Review of the Spirobolida on Madagascar, with descriptions of twelve new genera, including three genera of ' fire millipedes' (Diplopoda)
Wesener, Thomas
Enghoff, Henrik
Sierwald, Petra
ZooKeys
2009
2009-09-04
19
19
1
128
6MN9Q
Wesener
Wesener & Enghoff & Sierwald
2009
[140,601,1187,1214]
Diplopoda
Spirobolellidae
Hylekobolus
Animalia
Spirobolida
101
102
Arthropoda
species
brachiosauroides
sp. nov.
urn:lsid:zoobank.org:act: 40FD10B2-63FB-4627-AAAC-6961BE9102E5
Materialexamined: 26 ♂, 21 ♀, 6 imm. Holotype:1 ♂ ( 55 mmlong), FMMC W089, Vohimena Mountains, Westslope, Ivorona, 114 m, rainforest, 24°50.026’ S, 46°56.943’ E, leg. Weseneret al., 23.V.2007. Paratypes:3 ♂, 4 ♀, FMMC W089, same data as holotype; 1 ♂, 1 ♀, ZMUC W089, same data as holotype; 1 ♂, ZMH W089, same data as holotype; 1 ♂, 1 ♀, CAS W089, same data as holotype; 1 ♂, ZSM W089, same data as holotype. Othermaterial examined:4 ♂, 4 ♀, W089, same data as holotype, voucher specimens deposited at the University Antananarivo; 5 ♂, 4 ♀, 2 imm., FMMC W049B, Andohahela, Isaka-Ivondro Sud, 46 m, rainforest, 24°49.690’ S, 46°51.971’ E, leg. Weseneret al., 08.VI.2007; 5 ♂, 4 ♀, 2 imm., W049B, same data as previous, voucher specimens deposited at the University Antananarivo; 2 ♂, 2 ♀, FMMC W099, Ambatotsirongorongo Mountain, Grand Lavasoa, rainforest, 25°5’10.23” S, 46°44’55.93” E, rainforest, leg. Weseneret al., 14.VI.2007; 2 ♂, 1 ♀, 2 imm., W099, same data as previous, voucher specimens deposited at the University Antananarivo.
Differentialdiagnosis: H. brachiosauroidesdiffers in size and colour from the sympatric living H. albicollaris sp. n.The posterior gonopods ( Figs 55M, O) of H. brachiosauroidesdiffer from other, same-sized Hylekobolusspecies: the lateral margin carries a thick, swollen, well-rounded projection ( Fig. 55M), a feature only shared with H. montanus sp. n. H. brachiosauroidesdiffers from H. montanus sp. n.in the presence of a protruding apical process ( x) on the posterior gonopods, a weakly protruding lateral retrorse process of the anterior gonopod ( Fig. 55N), and a different colour pattern.
Description. Measurements: males with 50 or 51 rings, 53–62 mmlong, 4.8–5.2 mmwide. Females with 50 or 51 rings, 58–72 mmlong, 5.1–6.0 mm wide. Coloration:anterior part of head and collum, posterior part of telson and posterior margin of body rings lightly red or white ( Figs 53A, 55A, C). Legs and antennae white ( Fig. 53A). Anterior part of body rings, telson, posterior part of head and collum black ( Figs 53A, 55A). Eyeswith 40–44 ocelli ( Fig. 55D). Anterior gonopodsternite basally wide, apically elevated into a triangular lobe with a triangular, wide, well-rounded tip ( Fig. 55L). Mesal process of coxite wide and only slightly protruding ( Fig. 55L). Apical process of telopodite large and well-rounded. Retrorse margin wide, not projecting above telopodite margin ( Fig. 55N). Margin of apical process basally wide and projecting ( Fig. 55N). Posterior gonopodstelopodite bent 90° ( Fig. 55O). Lateral margin with a thick, swollen, well-rounded projection ( w, Fig. 55M). Apical process ( x) apically slender, basally with a widely protruding margin ( Fig. 55M). Membranous lobe ( y) rectangular ( Fig. 55M). Projection of sperm canal ( z) long and slender, slightly curved towards apical process ( Fig. 55M). Intraspecificvariation:coloration of the posterior margin of body ring varies in adults between white and reddish, while it is always white in imm..
Distributionand ecology: this species was found in the isolated Ambatotsirongorongo Mountain, the Andohahela Isaka-Ivondro corridor as well as on the western slopes of the Vohimena Mountain ( Fig. 54). H. brachiosauroidescould not be collected north of the Isaka-Ivondro corridor, where H. goodmani sp. n.and H. montanus sp. n.occur. In the eastern Vohimena slopes, H. rufus sp. n.replaces H. brachiosauroides. All individuals were collected inside dead logs.
Etymology: brachiosauroides, adjective, refers to the dinosaur genus Brachiosaurus, whose neck and head closely resemble the general shape of the posterior gonopods of this millipede.
2608818240
2007-05-23
FMMC
Wesener
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
W089
27
21
holotype
2608818212
[472,1103,1363,1390]
2007-05-23
FMMC
Wesener
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
W089
4
4
paratype
2608818309
[140,652,1399,1425]
2007-05-23
ZMUC
Wesener
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
W089
1
1
paratype
2608818296
[661,1103,1399,1425]
2007-05-23
ZMH
Wesener
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
W089
1
paratype
2608818227
[140,629,1434,1460]
2007-05-23
CAS
Wesener
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
W089
1
1
paratype
2608818332
[639,1080,1434,1460]
2007-05-23
ZSM
Wesener
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
W089
1
paratype
2608818349
2007-05-23
FMMC
University
Ivorona
114
-24.833767
Vohimena Mountains
1
46.94905
West
101
102
4
4
Antananarivo
2608818355
2007-06-08
FMMC
Wesener
46
-24.828167
Isaka-Ivondro Sud
1
46.866184
Andohahela
101
102
W049
6
4
Antananarivo
2608818354
2007-06-08
FMMC
University
46
-24.828167
Isaka-Ivondro Sud
1
46.866184
Andohahela
101
102
6
4
Antananarivo
2608818258
2007-06-14
FMMC
Wesener
102
103
-25.086176
Grand Lavasoa
1
46.74887
Ambatotsirongorongo Mountain
101
102
W099
2
2
Antananarivo
2608818361
2007-06-14
FMMC
University
-25.086176
Grand Lavasoa
1
46.74887
Ambatotsirongorongo Mountain
102
103
3
1
Antananarivo