Hyleoglomeris mashanorum, 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 : 21

Hyleoglomeris mashanorum sp. n.

Fig. 15 .

Material examined: Holotype male ( IZAS), China, Guangxi Prov., Huanjiang County, Mulun Karst, Cave Mashan Dong, ca 340 m a.s.l., 25.15855ºN, 108.05865ºE, 21.05.2007, leg. F. Bréhier (CHIgx 07–21–04).

Name. To emphasize the animal’s provenance from Cave Mashan Dong in Mulun Karst.

Diagnosis: Differs from congeners except H. eusulcata , H. curtisulcata sp. n. and H. yinshi sp. n. in the presence of only one complete transverse stria on the collum, from both H. eusulcata and H. curticulcata sp. n. by the absence of a transverse sulcus on the second tergite, from H. yinshi sp. n. by the shape of the central lobe of the telopod syncoxite and of the notch in male syncoxite 18. See also Key below.

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

Length ca 7.5 mm, width 3.7 mm. Coloration entirely pallid.

Ocelli at least 3+1, translucid, barely visible. Antennomere 6 ca 2.2 times as long as high.

Collum with one complete transverse stria. Second tergite with eight transverse striae, three starting below, one level to, the remaining striae above schism, four striae (not last two ones from below) crossing the dorsum.

Leg 17 ( Fig. 15 A) with a low and irregularly shaped outer coxal lobe; telopodite 4-segmented, tarsus devoid of subapical spines.

Leg 18 ( Fig. 15 B) with a narrowly arch-shaped syncoxital notch; telopodite 4-segmented.

Telopods ( Fig. 15 C, D) with a rather low, linguiform, sparsely setose, central syncoxital lobe flanked by two setose horns, each latter crowned by a highly inconspicuous lobule ( Fig. 15 D). Both prefemur and, to a lesser extent, femur micropapillate 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 evidently sigmoid, subacuminate apically.

Remark: Due to several troglomorphic traits, this species seems to be a troglobite.

Figures

FIGURE 15. Hyleoglomeris mashanorum sp. n., holotype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, front view. D: tip of syncoxital horn, front view. Scale bar: 0.2 mm (D drawn not to scale).