Hyleoglomeris maculata, Golovatch & Geoffroy & Mauriès, 2006

Golovatch, Sergei I., Geoffroy, Jean-Jacques & Mauriès, Jean-Paul, 2006, Review of the millipede genus Hyleoglomeris Verhoeff, 1910 (Diplopoda, Glomerida, Glomeridae), with descriptions of new species from caves in Southeast Asia, Zoosystema 28 (4), pp. 887-915 : 898-899

Hyleoglomeris maculata n. sp.

( Fig. 6 )

TYPE MATERIAL. — China. Yunnan Province, Menzi County, Lao Shao Dong Cave , 5.I.1989, leg. P. Beron, holotype ♂ ( NMNHS), paratypes 4 ♂♂, 6 ♀♀, 4 juvs ( NMNHS) ; 3 ♂♂, 2 ♀♀ ( MNHN CC154 ) ; 3 ♂♂, 2 ♀♀ ( ZMUM). — Same county, Wulichong Sinkhole Cave (No. 3), paratypes 4 ♂♂, 6 ♀♀, 4 juvs ( NMNHS) .

ETYMOLOGY. — To emphasize the peculiar maculate colour pattern.

DIAGNOSIS. — Differs from congeners by the peculiar colour pattern, combined with a relatively strongly reduced hyposchism and certain details of telopod structure.

DESCRIPTION

Length 6.0-8.0 (♂) or 6.5-10 mm (♀), width 3.0-4.0 (♂) or 3.3-5.0 mm (♀). Holotype 7.0 mm long and 3.5 mm wide.

Background coloration pallid to yellow, spots on terga brown to dark brown.

Head marbled red-brown,antennae dark red-brown, antennomere 6 about 2.3-2.4 times longer than wide; ocelli 6 + 1 to 7 + 1, black, convex;Tömösváry’s organ transverse-oval, only slightly wider than long.

Collum, thoracic shield and tergite 11 entirely pale. Body with a distinctive pattern ( Fig. 6A ) of 1 + 1 large, transverse-oval, evidently separated, paramedian spots on terga 3-10 and on pygidium, as well as of 1 + 1 increasingly small, roundish, sublateral spots on terga 3-(8)9.

Collum with two transverse striae.

Thoracic shield with a narrow hyposchism not reaching the caudal tergal contour; 9 or 10 transverse striae, of which 5 or 6 start above the schism and 4-6 others in differing combinations (never the first and the last though) cross the dorsum.

Male pygidium usually slightly sinuate medially at caudal margin.

Male leg 17 ( Fig. 6B ) with a medium-sized and regularly rounded outer coxal lobe; telopodite 3- segmented.

A D C B

Male leg 18 ( Fig.6C ) with a more or less narrowly ogival syncoxital notch; telopodite 4-segmented.

Telopods ( Fig. 6D, E ) with a rather high and subovoid central syncoxital lobe flanked by two setose horns crowned with a foveole-shaped structure with an apical setoid. Prefemur micropapillate laterally. Caudomedial outgrowth of femur relatively narrow at base ( Fig. 6E ). Caudomedial outgrowth of tibia with a micropapillate tubercle at base ( Fig. 6E ). Tarsus weakly rounded apically ( Fig. 6D, E ).

REMARKS

Based on the coloured head, ocelli and tergal pattern, this species is probably only troglophilic. Its closest relatives seem to be some of the sympatric troglobitic congeners (see below).

Figures

FIG. 6. — Hyleoglomeris maculata n. sp., ♂ paratype from Cave Loa Shao Dong: A, colour pattern; B, leg 17; C, leg 18; D, telopod, front view; E, distal part of telopod, caudal view. Scale bar: A, drawn not to scale; B-E, 0.5 mm.