The first record of Telemidae from Kenya, with the description of two new species (Arachnida, Araneae)
Author
Song, Yang
Author
Zhao, Huifeng
Author
Luo, Yufa
Author
Kioko, Grace M.
Author
Kioko, Esther N.
Author
Li, Shuqiang
text
ZooKeys
2017
725
1
15
http://dx.doi.org/10.3897/zookeys.725.15059
journal article
http://dx.doi.org/10.3897/zookeys.725.15059
1313-2970-725-1
A7963434A52E4A2E97152E59C709C0C6
A7963434A52E4A2E97152E59C709C0C6
Apneumonella taitatavetaensis Zhao & Li
sp. n.
Figs 4, 5, 6, 7, 9, 10
Type
material.
Holotype ♂(NMK). Kenya: Taita-Taveta County: Wundanyi Town, Ngangao Forest,
S03°21.30'
,
E38°20.41'
, 1821 m, 23.VII.2016, G.M. Kioko, Q.Y. Zhao & Z.Y. Yao. Paratypes. 1♂ and 3♀ (IZCAS), same data as holotype.
Etymology.
The specific name refers to the type locality; adjective.
Diagnosis.
This new species is similar to
A. oculata
but females can be distinguished by their globular abdomen with two outgrowths near the carapace (arrowed on Fig. 6A), which are not present in
A. oculata
. Another difference is that the diameter of the receptacle is four times the diameter of the insemination duct (Fig. 6C) as compared to that of
A. oculata
, whose receptacle is twice the diameter of the insemination duct. The ocular quadrangle width is half of the carapace width while that of
A. oculata
is one-third of the carapace width.
Description.
Male (holotype). Total length 1.06. Carapace 0.45 long, 0.41 wide. Abdomen 0.58 long, 0.46 wide. Carapace reddish brown, with dark spots on the mid-thoracic area and obscure radial stripes around it (Fig. 4A). Six eyes, well-developed, encircled by black rings, clypeus 0.05 long. Chelicerae, labium, endites, sternum and legs yellow, with dark brown pattern. Cheliceral promargin with 2 big
teeth
and 5 granulous denticles and retromargin with 4 triangular denticles. Leg measurements: I 2.10 (0.62, 0.16, 0.59, 0.38, 0.35); II 1.75 (0.53, 0.12, 0.46, 0.34, 0.30); III 1.41 (0.40, 0.10, 0.33, 0.34, 0.24); IV 1.83 (0.54, 0.11, 0.50, 0.38, 0.30). Secretory orifices of tibial glands round (Fig. 9
B-C
). Abdomen light brown with a yellow spot centrally.
Figure 4.
Apneumonella taitatavetaensis
sp. n., male holotype. A Habitus, dorsal view B Bulb, apical view C Palp, prolateral view D Palp, retrolateral view. Scale bars: 0.2 mm (A), 0.02 mm (B), 0.1 mm (C, D). Em, embolus; Ta, Tegular apophysis.
Palp: tibia thick, 1.7 times longer than patella; cymbium straight and thick, 1.8 times longer than tibia. Bulb ovoid, with a finger-like tegular apophysis on its middle-upper part and several wrinkles basally (arrowed on Fig. 5
A-B
). The bulb apex extends into a nearly conical embolus (Figs 4
B-D
, 5
A-D
), the surface of the embolus is rough with dense spine-like structures (arrowed on Fig. 5D).
Figure 5.
Apneumonella taitatavetaensis
sp. n., male paratype. A Palp, prolateral view B Palp, retrolateral view C Embolus, prolateral view D Embolus, retrolateral view. Scale bars: 0.05 mm (A, B), 0.03 mm (C, D). Arrows indicate special structures of the embolus and bulb.
Female. Total length 0.98. Carapace 0.42 long, 0.37 wide. Abdomen 0.55 long, 0.46 wide. Eyes encircled by black rings, clypeus 0.04 long. Carapace light brown, sternum dark brown. Abdomen globular with two outgrowths near carapace (arrowed on Fig. 6A). Other coloration and pattern similar to male (Fig. 6
A-B
). Leg measurements: I 1.83 (0.54, 0.13, 0.50, 0.34, 0.32); II 1.58 (0.48, 0.11, 0.43, 0.28, 0.28); III 1.34 (0.38, 0.11, 0.35, 0.27, 0.23); IV 1.78 (0.53, 0.11, 0.48, 0.39, 0.27). Insemination duct thin and short, receptacle membranous and baglike with a single tube gradually expanding as a concave sac, and the diameter of receptacle four times larger than that of the insemination duct (Fig. 6C).
Figure 6.
Apneumonella taitatavetaensis
sp. n., female paratype. A Habitus, dorsal view B Habitus, ventral view C Genitalia, lateral view. Scale bars: 0.2 mm (A, B), 0.02 mm (C). Re, receptacle. Arrows indicate apophyses of female abdomen.
Figure 7. Apical view of embolus. A
Guhua kakamegaensis
sp. n. B
Apneumonella taitatavetaensis
sp. n. Scale bars: 0.02 mm (A, B).
Figure 8. Tibial glands of
Guhua kakamegaensis
sp. n. (
A-C
). A Part of tibia B Position of tibial glands (white squares) C Secretory orifice (SO). Scale bars: 30
μm
(A), 10
μm
(B), 0.3
μm
(C).
Figure 9. Tibial glands of
Apneumonella taitatavetaensis
sp. n. (
A-C
) A Part of tibia B Position of tibial glands (white squares) C Secretory orifice (SO). Scale bars: 30
μm
(A), 10
μm
(B), 0.3
μm
(C).
Figure 10. Distribution records of
Telemidae
in Kenya: 1
Guhua kakamegaensis
sp. n. 2
Apneumonella taitatavetaensis
sp. n.
Habitat
.
Leaf litter in cloud forest.
Comments.
Apneumonella
Fage, 1921 was described with
A. oculata
Fage, 1921 from Tanzania as the type species. The new species shares several characters with
A. oculata
, including the shape of the receptacle and denticulation of the chelicerae. Furthermore, the shape of tibial glands in this species is different from the plate-shaped structure of the tibial glands in
Telema
and
Usofila
, but similar to the lined structure in
Apneumonella
(
Emerit 1985
). The collection locality of
A. taitatavetaensis
sp. n. is approximately 150 km from the type locality of
A. oculata
.
Distribution.
Known only from the type locality (Fig. 10).