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
X8B2
Wesener
Wesener & Enghoff & Sierwald
2009
[140,516,905,932]
Diplopoda
Pachybolidae
Colossobolus
Animalia
Spirobolida
34
35
Arthropoda
species
aculeatus
sp. nov.
urn:lsid:zoobank.org:act: FA93B3D8-7AD7-4E8F-93E9-CA4B329D4BB9
Materialexamined: 2 ♂ Holotype: 1 ♂( 122 mmlong), CAS BLF 9555, Madagascar, Province Antsiranana, Forêt de Binara, 7.5 km230° SW Daraina, 375 m, tropical dry forest, 13°15’18”S, 049°37’00”E, leg. B. L. Fisher, 1.XII.2003. Paratype: 1 ♂, same data as holotype.
Similarspecies:the special U-shaped posterior gonopods are unique for Colossobolusexcept for C. pseudoaculeatus sp. n. C. aculeatusdiffers from the latter in the presence of a sharp-ending preanal process, which is well-rounded in C. pseudoaculeatus sp. n.(compare Fig. 20Cwith Fig. 21B). The lateral branch of the posterior gonopod telopodite is of equal width all along in C. aculeatuswhile it is basally slen- der with a swollen tip in C. pseudoaculeatus sp. n.(compare Fig. 20Ewith Fig. 21E).
Description. Measurements: males with 51 body rings, circa 122 mmlong, 9.5 mmwide. Female unknown. Colorationaffected by alcohol. Head, antennae, legs and telson red ( Figs 20A–C). Median part of collum dark, margins red ( Fig. 20A). Pro- and anterior part of mesozonites dark brown, posterior part of meso- and metazonites red. Antennaeprotruding back to ring 3. Male coxal processeson coxae 3 and 4 barely visible, on coxae 5–7 absent ( Fig. 20B). Preanal processsharp-edged, but not projecting over anal valves ( Fig. 20C). Anterior gonopodsternite elongated into a wide, broadly rounded lobe ( Fig. 20D). Mesal process of coxite weakly developed, protruding into a very short wide lobe with Figure 21. Colossobolus pseudoaculeatus sp. n., male holotype. Ahead, lateral Btelson Canterior gonopods, posterior view Danterior gonopods, anterior view Eright posterior gonopod, posterior view Fright posterior gonopod, anterior view. Apo = apodeme; av = anal valves; Co = collum; Cx = coxite; ma = membranous area; Md = mandible; Pre = preanal ring; St = sternite; sub = subanal scale; T = telopodite; T-Lbr = telopodite lateral branch; T-mbr = telopodite main branch; Tp = telopodite process. Not to same scale. a well-rounded tip. Lobe only slightly longer than sternite ( Fig. 20D). Telopodite process long, becoming apically thicker than basally. Mesal margin laterally sharp, not projecting ( Fig. 20F). Posterior gonopodstelopodites positioned parallel to one another, generally Ushaped ( Figs 20E, G). Coxite branch absent ( Fig. 20E). Lateral branch of regular width, tip wide, well-rounded, not thicker than median or basal parts ( Fig. 20E). Central membranous area present as a wide, well-rounded knob ( Fig. 20G). Main branch slightly longer than lateral branch, latero-apically towards lateral branch with a large membranous area (Fig, 20G).
Distributionand ecology: C. aculeatusis only known from the Forêt Binara ( Fig. 10) where it occurs in close proximity to C. semicyclus.
Etymology: aculeatus, adjective, refers to the sharp-edged preanal process, unique for Colossobolus.
2620669307
2003-12-01
de Binara & B. L. Fisher
Madagascar
375
-13.255
Foret de Binara
21
49.616665
Province
34
35
1
1
Antsiranana
holotype
2620669301
2003-12-01
de Binara & B. L. Fisher
Madagascar
375
-13.255
Foret de Binara
21
49.616665
Province
34
35
1
1
Antsiranana
paratype