Asian species of the genera Anahita Karsch 1879, Ctenus Walckenaer 1805 and Amauropelma Raven, Stumkat & Gray 2001 (Arachnida: Araneae: Ctenidae)
Author
Jäger, Peter
text
Zootaxa
2012
2012-08-20
3429
1
1
63
http://dx.doi.org/10.11646/zootaxa.3429.1.1
journal article
10.11646/zootaxa.3429.1.1
11755334
10096509
Amauropelma fungifer
(
Thorell 1890
)
comb. nov.
Figs 179
,
266
–275
Ctenus fungifer
Thorell 1890: 309
(Description of female;
holotype
female examined).
Type material.
Holotype
female
(
MCSN
),
Malaysia
, Pulau
Penang
, Loria and
Fea
leg.
Diagnosis.
Small
Ctenidae
(total length female 9.0). Distinguished from all other
Amauropelma
species
known so far by the shape of the epigynal plate: an anterior part with parallel margins is separated by deep indentations from the lateral lobes (
Figs 266
, 274).
FIGURES 266–269. 266–268
Amauropelma fungifer
(
Thorell 1890
)
, holotype female from Pulau Penang, Malaysia.
269
Ctenus valvularis
Hasselt 1882
, holotype(?) female from Sumatra, Indonesia. 266, 269 Epigyne, ventral. 267 Epigyne, posterior. 268 Vulva, dorsal. [269 modified after
Hasselt 1882
].
Redescription.
Female
(
holotype
). PL 4.2, PW 3.3, AW 2.0, OL 4.8, OW 3.0. Spination of palp and legs: palp 131, 000, 1211, 1013; femora I p021, d111, r111, II p112(3), d111, r111, III p112, d111, r112, IV p112, d111, r001; patellae I–II 000, III–IV 001; tibiae I missing, II v22222, III p11, d111(11), r11, v222, IV p11, d111, r11, v222;
metatarsi I missing, II v222, III p112, d01(0)0, r112, v222, IV p112, d010, r112, v12212. Chelicerae with 3 promarginal, 5 retromarginal teeth, with elongated field (distally ending as single row) with 25–30 denticles. Retromargin of chelicerae close to fang base with 5 bristles.
Copulatory organ as in diagnosis (
Figs 266–268
, 274. Epigynal field with 3 slit sense organs anterior to epigynal plate (only seen in dissected epigyne). Posterior part of epigynal plate narrow with distinct lateral margins. Distal part of lateral teeth posteriorad. Internal duct system with two round chambers as spermathecae, one large and one small; widely separated from each other; fertilisation ducts mediad.
Colour (Figs 270–273). Faded in
holotype
with remnants of dark lateral longitudinal bands on dorsal prosoma.
Male.
Unknown.
Distribution.
Known only from the
type
locality (
Fig. 179
: 7).
Note.
The small size and colour pattern and especially the shape of the epigynal plate as well as the patellar spination support that this species belongs to the genus
Amauropelma
. It was compared in the original description (
Thorell 1890
) with
Ctenus valvularis
Hasselt 1882
from
Java
and
Sumatra
. For comparative purposes, the original illustration by
Hasselt (1882)
is depicted here (
Fig. 269
).