Review of the millipede genus Hyleoglomeris Verhoeff, 1910 in China, with descriptions of new species (Diplopoda, Glomerida, Glomeridae)
Author
Golovatch, Sergei I.
Author
Liu, Weixin
Author
Geoffroy, Jean-Jacques
text
Zootaxa
2012
3358
1
27
journal article
10.5281/zenodo.214383
39e4456d-a611-49e2-acb1-37e84cde484a
1175-5326
214383
Hyleoglomeris nigu
sp. n.
Fig. 6
.
Material examined:
Holotype
male (
MNHN
CC 172),
China
, Guizhou Prov., Qianxi County, Honglin Town, Cave Luo Sai Dong,
22.11.2003
, leg. L. Latella & D. Avesani.
Paratypes
.
1 female
(
MNHN
CC 172),
1 female
(
IZAS
), same locality, together with
holotype
.
Name:
To emphasize the animal being isolated in its cave, “
nigu
” in Chinese meaning a “nun”; a noun in apposition.
FIGURE 6.
Hyleoglomeris nigu
sp. n.
, holotype. A: leg 17, front view. B: leg 18, front view. C & D: left half of telopods, front and caudal views, respectively. Scale bar: 0.2 mm.
Diagnosis:
Differs from all congeners in the absence of a lobe on the caudomedial process of the telopod femur, of a setoid filament at the tip of the telopod syncoxital horns, of a telopod tibial process, coupled with a low, roundly subtriangular, central lobe of the telopod syncoxite. See also Key below.
FIGURE 7.
Hyleoglomeris gudu
sp. n.
, holotype. A: leg 17, front view. B: leg 18, front view. C: right half of telopods, front view. Scale bar: 0.2 mm.
Description:
All characters like in
H. tiani
sp. n.
, except as follows.
Length ca
5.5 mm
(
holotype
) or 7.0–8.0 mm (
paratypes
), width
2.8 mm
(
holotype
) or 3.0 mm (
paratypes
). Coloration entirely pallid. Ocelli at least 5+1, translucid, mostly barely visible. Antennomere 6 ca 1.8 times as long as high.
Second tergite with seven transverse striae, three starting below, one level to, the remaining striae above schism, 4 (
holotype
) or 3 (
paratypes
) striae (various, but not uppermost one) from below crossing the dorsum.
Male leg 17 (
Fig. 6
A) with a high and regularly rounded outer coxal lobe; telopodite 4-segmented, tarsus devoid of subapical spines.
Male leg 18 (
Fig. 6
B) with a V-shaped syncoxital notch; telopodite 4-segmented.
Telopods (
Fig. 6
C, D) with a rather low, roundly subtriangular, central syncoxital lobe flanked by two setose horns, each latter crowned by a minute lobule. Neither prefemur nor femur micropapillate laterally. Caudomedial femoral process prominent. Caudomedial process of tibia absent; tibial tubercle on caudal face evident, papillate and pilose. Tarsus evidently sigmoid, subacuminate apically.
Remark:
Due to a number of troglomorphic traits (unpigmented tegument and ocelli), this species seems to be a troglobite.