Hyleoglomeris mulunensis, Golovatch, Sergei I., Liu, Weixin & Geoffroy, Jean-Jacques, 2012

Golovatch, Sergei I., Liu, Weixin & Geoffroy, Jean-Jacques, 2012, Review of the millipede genus Hyleoglomeris Verhoeff, 1910 in China, with descriptions of new species (Diplopoda, Glomerida, Glomeridae), Zootaxa 3358, pp. 1-27 : 19-20

Hyleoglomeris mulunensis sp. n.

Fig. 14 .

Material examined: Holotype male ( IZAS), China, Guangxi Prov., Huanjiang County, Mulun Karst, Cave Xia Dong, ca 650 m a.s.l., 25°10’13’’N, 108°00’17’’E, 11.03.2009, leg. Yu Zhuangji & Wei Longtao (CHIgx09–074). Paratypes. 1 male, 1 female ( MNHN CC 179), 1 male, 1 female ( SCAU), same locality, together with holotype.

Name. To emphasize the animal’s provenance from a cave in Mulun Karst.

Diagnosis: Differs from congeners except H. kunnan sp. n. in the 2nd transverse stria on the collum being obliterated mid-dorsally, from H. kunnan sp. n. by the presence of a setoid filament at the tip of the telopod syncoxital horns. See also Key below.

Description: All characters like in H. tiani sp. n., except as follows.

Length ca 6.0– 7.5 mm, width 3.2–3.6 mm in both sexes. Holotype 6.0 mm long, 3.5 mm wide. Coloration entirely pallid.

Ocelli 3+1 or 4+1, translucid, barely visible. Antennomere 6 ca 1.9–2.0 times as long as high.

Collum with two transverse striae, but 2nd one obliterated and interrupted mid-dorsally. Second tergite with 8–10 transverse striae, three starting below, one level to, the remaining striae above schism, 3–5 striae (never last three ones from below) crossing the dorsum.

Male leg 17 ( Fig. 14 A) with a rather low and regularly rounded outer coxal lobe; telopodite 3-segmented, tarsus devoid of subapical spines.

Male leg 18 ( Fig. 14 B) with a broadly arch-shaped syncoxital notch; telopodite 4-segmented.

Telopods ( Fig. 14 C, D) with a rather low, roundly subtriangular, sparsely setose, central syncoxital lobe flanked by two setose horns, each latter crowned by an inconspicuous lobule with a short setoid filament at base ( Fig. 14 D). Both prefemur and femur only faintly papillate laterally. Caudomedial femoral process prominent, subapically with a distinct lateral lobe on caudal face. Caudomedial process of tibia evident, membranous; tibial tubercle on caudal face distinct, papillate. Tarsus rather slightly sigmoid, subacuminate apically.

Remark: Due to showing several troglomorphic traits, this species might well prove to be a troglobite.

Figures

FIGURE 14. Hyleoglomeris mulunensis sp. n., male paratype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, caudal view. D: tip of syncoxital horn, front view. Scale bar: 0.2 mm (D drawn not to scale).