Three new species of Telemidae (Araneae) from Western Africa
Author
Wang, Chunxia
Author
Li, Shuqiang
text
Zootaxa
2011
2902
44
58
journal article
46774
10.5281/zenodo.200620
03792778-b0e4-44d8-adbd-8e36ae3c511f
1175-5326
200620
Cangoderces milani
sp. nov.
Figs 5–8
,
12
Type
material.
Holotype
:
male (
RMNH
), Wak, leaf litter, Ngaoundere Province [7°19ʹ25.94ʺN, 13°35ʹ0 1.07ʺE],
Cameroon
,
19 November
, 1976, A. P. B. Deeleman and A. Lansberg leg.
Paratypes
:
2 males
and
1 female
, same data as
holotype
.
Etymology.
The specific name is after Milan Rezác, an arachnologist from Crop Research Institute in
Czech Republic
; noun.
Diagnosis.
This new species is similar to
C. koupeensis
Baert, 1985
and
C. christae
sp. nov.
, but can be distinguished from
C. koupeensis
by the semi-membranous embolus, the appearance of a falculate modifier at the base of embolus prolaterally (
Figs 5
A–B, 6A–B) in the male, and the distinct shape of spermatheca (
Figs 5
C, 8A–B) in the female; from
C. christae
sp. nov.
by the pear-shaped palpal bulb and the semi-membranous embolus (
Figs 5
A–B, 6A–B) in the male, and the distinct shape of spermatheca (
Figs 5
C, 8A–B) in the female.
Description. Male (
holotype
):
Total length 1.65. Prosoma 0.60 long, 0.50 wide. Opisthosoma 1.00 long, 0.55 wide. Prosoma, sternum, yellow. Legs, labium, endites and chelicerae white. Prosoma round. Six eyes, anterior row of four eyes slightly curved posteriorly, AME close together, AME and ALE contiguous, lateral eyes contiguous. Chelicerae (
Fig. 7
C) longer than endites, with two teeth and four tiny granulous denticles on the promargin, and five small triangular teeth on the retromargin. Leg measurements: I 4.27 (1.25, 0.20, 1.40, 0.87, 0.55); II 3.99 (1.00, 0.20, 1.25, 0.80, 0.54); III 2.63 (0.75, 0.16, 0.80, 0.55, 0.37); IV 3.55 (1.00, 0.20, 1.10, 0.75, 0.50). Leg formula: I- II-IV-III. Opisthosoma yellowish, pear-shaped, pedicle with a small, well-developed lorum consisted of a dorsal Xshaped plate (
Fig. 7
E). Male palp (
Figs 5
A–B, 6A–B): Tibia with a trichobothrium dorsally; bulb whitish, pearshaped, with a blunt, semi-membranous embolus and one falculate modifier at the basal of embolus prolaterally.
FIGURE 1.
Cangoderces christae
sp. nov.
, male holotype (A, C); female paratype (B). A. Palp, prolateral view; B. Spermatheca, lateral view; C. Embolus, retrolateral view.
FIGURE 2.
Cangoderces christae
sp. nov.
, male holotype, palp. A. Prolateral view; B. Retrolateral view. Scale bar: 0.1 mm.
FIGURE 3.
Cangoderces christae
sp. nov.
, male holotype (C–D); female paratype (A–B). A. Prosoma, dorsal view; B. Endites, labium and sternum, ventral view; C. Palpal bulb, ventral view; D. Chelicerae, posterior view. Scale bars: 0.1 mm.
FIGURE 4.
Cangoderces christae
sp. nov.
, female paratype. A. Genital area, ventral view; B. Spermatheca, dorsal view; C. Spermatheca, lateral view; D. Colulus, ventral view. Scale bars: 0.1 mm.
FIGURE 5.
Cangoderces milani
sp. nov.
, male holotype (A–B); female paratype (C). A. Palp, prolateral view; B. Palp, retrolateral view. C. Spermatheca, dorsal view.
FIGURE 6.
Cangoderces milani
sp. nov.
, male holotype, palp. A. Prolateral view; B. Retrolateral view. Scale bar: 0.1 mm.
FIGURE 7.
Cangoderces milani
sp. nov.
, male holotype (A–E); female paratype (F). A. Prosoma, dorsal view; B. Endites, labium and sternum, ventral view; C. Chelicerae, posterior view; D. Colulus, ventral view; E. Abdominal pedicel, dorsal view; F. Genital area, ventral view. Scale bars: 0.1 mm.
FIGURE 8.
Cangoderces milani
sp. nov.
, female holotype. A. Spermatheca, ventral view; B. Spermatheca, dorsal view. Scale bar: 0.1 mm.
Female (one of the
paratypes
):
Similar to male in coloration and general features, but with a smaller body size and shorter legs. Total length 1.50. Prosoma 0.55 long, 0.50 wide. Opisthosoma 0.90 long, 0.55 wide. Leg measurements: I 4.05 (1.20, 0.20, 1.30, 0.85, 0.50); II 3.47 (0.90, 0.20, 1.15, 0.70, 0.50); III 2.39 (0.70, 0.14, 0.75, 0.45, 0.35); IV 3.25 (0.95, 0.20, 1.00, 0.65, 0.45). Leg formula: I-II-IV-III. Vulva (
Figs 5
C, 7F, 11A–B) has a weakly sclerotized, medially and posteriorly curved plate, which decorated with several small teeth at the edge.
Variation.
Total length: males 1.61–1.65 (n=3).
Distribution.
Cameroon
(Ngaoundere) (
Fig. 12
).
Discussion.
Cangoderces christae
sp. nov.
and
C. milani
sp. nov.
are assigned to the genus
Cangoderces
because of the following characteristics: Opisthosoma pear-shaped, pedicle with a small, well-developed lorum consisted of a dorsal X-shaped plate, and embolus blunt, not sclerotized. The spermatheca of
C. milani
sp. nov.
is similar to
Seychellia cameroonensis
Baert, 1985
from Batouri,
Cameroon
. The discovery of the male
S. cameroonensis
in the future will be able to help confirm the taxonomic status of
C. milani
sp. nov.