A new Cangoderces (Araneae, Telemidae) from DR Congo, the first telemid from Central Africa
Author
Jocqué, Rudy
0000-0002-7196-7476
Biodiversity Inventory for Conservation (BINCO) NPO, Walmersumstraat 44, B- 3380 Glabbeek, Belgium. merlijnjocque @ gmail. com; https: // orcid. org / 0000 - 0002 - 7196 - 7476
merlijnjocque@gmail.com
Author
Jocque, Merlijn
0000-0002-7196-7476
Biodiversity Inventory for Conservation (BINCO) NPO, Walmersumstraat 44, B- 3380 Glabbeek, Belgium. merlijnjocque @ gmail. com; https: // orcid. org / 0000 - 0002 - 7196 - 7476 & Aquatic and Terrestrial Ecology (ATECO), Royal Belgian Institute of Natural Sciences (RBINS), Vautierstraat 29, 1000 Brussels, Belgium
merlijnjocque@gmail.com
Author
Mbende, Menard
0000-0003-1751-0747
WWF DRC, 14, Avenue Sergent Moke, Q. Socimat, Kinshasa, RD Congo. wwfdrc @ wwfdrc. org; https: // orcid. org / 0000 - 0003 - 1751 - 0747
wwfdrc@wwfdrc.org
text
Zootaxa
2022
2022-07-08
5162
4
430
438
journal article
93672
10.11646/zootaxa.5162.4.7
f8240917-210c-42e2-940c-2b0cf96ce28a
1175-5326
6810454
C61A1C3D-BAE4-4779-813F-65BB794DD116
Cangoderces wewef
Jocqué & Jocque
,
sp. n.
Figs. 1–5
Type material.
Holotype
:
Male
:
DR CONGO
,
Mai Ndombe Province
,
Malebo
,
Bopambu Forest
, part of
Nkombo Forest
,
356 m
asl
,
-2.43763
,
16.63943
,
14 Oct. 2021
,
Winkler
extraction of forest litter,
M. Jocque
leg. BINCO_
DRC
_21_0001(BE_RMCA_ARA.Ara 247533).
Paratypes
:
2♂
2♀
2 juveniles
:
DR CONGO
, together with
holotype
(BE_RMCA_ARA.Ara 247534)
;
1♂
: as previous (BE_RMCA_ARA.Ara 247535)
: used for SEM.
Diagnosis.
The male of
Cangoderces wewef
sp. n.
is characterized by the shape of the bulbus with a deep triangular dorsal indentation absent in other species of the genus and by the shape of the embolus and the appendages at its base. The female is characterized by the fusiform shape of the sclerotized spermatheca which has a different shape in other species.
Etymology.
The species name is an arbitrary combination of letters containing twice W and F; it is a noun in apposition and refers to the World Wildlife Fund and its contribution to the conservation of biodiversity in this region.
Description.
Male (
holotype
). Total length 1.16, carapace length 0.44, width 0.39, height 0.25.
FIGURE 1.
Cangoderces wewef
sp. n.
A–B: Holotype male; C–D: Paratype female (247534). A. Habitus, dorsal view. B. do., ventral view. C. Habitus, dorsal view. D. do., ventral view. Scale bars: A–B = 200 μm; C–D: 500 μm.
FIGURE 2.
Cangoderces wewef
sp. n.
Paratype male (247535). A. Tibia IV, dorsal view of central part with transverse grooves of Emerit’s glands. B. Male palp, dorsal view. C. do., retrolateral view. D. do., detail of previous. E: Embolus
Color (
Figs. 1 A, B
): Carapace yellow with dark brown mottling on broad lateral band and star shaped patch around fovea; chelicerae and legs yellow; sternum yellow suffused with black; abdomen: dorsum pale grey with faint paler pattern, sides and venter white with dark pattern around spinnerets.
Fovea: length 0.09, anterior end 0.12 from AME.
AER straight from above, width 0.15. All eyes circular and with diameter about 0.02. PER 0.16 wide.
Leg spination: all P with one dorsal spine; TiI and TiII with one dorsal spine near the middle.
TiIV with transverse dorsal depressions, possibly accompanying Emerit’s glands.
Legs measurements (see table 1).
TABLE 1.
Leg measurements for male holotype
Fe |
P |
Ti |
Mt |
t |
total |
I |
1.31 |
0.13 |
0.98 |
0.56 |
0.43 |
3.41 |
II |
0.74 |
0.13 |
0.75 |
0.46 |
0.26 |
2.35 |
III |
0.54 |
0.11 |
0.52 |
0.43 |
0.23 |
1.84 |
IV |
0.66 |
0.15 |
0.69 |
0.49 |
0.20 |
2.18 |
Abdomen (
Figs. 1A, B
) with typical shape of male
Telemidae
: wider at the posterior end; with dorsal sclerotized pattern on pedicel; dispersed long setae on dorsum. Colulus well developed, pentagonal.
Male palp: (
Figs. 2B–D
,
3A–D
,
4A, B
): Cymbium long, slender and straight; bulbus large with deep dorsal indentation near centre; embolus inserted on retrolateral side broad, slightly widened towards downward pointing tip, its base with sharp excrescences (
Figs. 2C, D
); prolateral side of bulbus with tubular apophysis with membranous attachment.
Female
paratype
. Total length 1.14 Carapace length 0.41, width 0.35, height 0.22.
Color (
Figs. 1 C, D
): Carapace brown, slightly suffused with black; no dark patch around fovea; sternum brown suffused with black; legs yellowish brown.
Fovea poorly developed. Eyes as in male.
Legs without spines. FIV strongly curved backward.
Leg measurements (see table 2).
TABLE 2.
Leg measurements for female paratype
Fe |
P |
Ti |
Mt |
t |
total |
I |
0.71 |
0.13 |
0.69 |
0.49 |
0.44 |
2.46 |
II |
0.69 |
0.13 |
0.61 |
0.39 |
0.33 |
2.15 |
III |
0.49 |
0.13 |
0.41 |
0.30 |
0.26 |
1.59 |
IV |
0.74 |
0.13 |
0.64 |
0.51 |
0.31 |
2.33 |
FIGURE 3.
Cangoderces wewef
sp. n.
Holotype male. A. Palp, retrolateral view. B. do. C. Palp, prolateral view. D. do. Scale bars: 100 μm. E: Embolus 100. E: Embolus; PTA: Prolateral Tubular Apophysis.
FIGURE 4.
Cangoderces wewef
sp. n.
A–B: Paratype male (247535); C–D: Paratype female (247534). A. Male palp, retrolateral view. B. do.; slightly tilted towards frontal view; C. Endogyne, ventral view. D. Spinnerets and colulus, ventral view. Scale lines: 100 μm. E: Embolus; PTA: Prolateral Tubular Apophysis; ST: Spermatheca.
Abdomen oval, with few dispersed setae; colulus well developed, pentagonal. Anterior lateral spinnerets twosegmented, much longer than posterior lateral spinnerets which are provided with a row of aciniform gland spigots (cf.
Murphy & Roberts, 2015
) and very short posterior median spinnerets.
Endogyne (
Fig. 4 C
): ventral view of outside a crescent shaped membranous area; internally with large sclerotized, fusiform spermatheca consisting of broad procurved part and complex central part directed forward.
Distribution.
Only known from
type
locality in
DR Congo
close to Malebo, Mai-Ndombe Province,
DR Congo
(
Fig. 5
).