Notiocoelotes, a new genus of the spider subfamily Coelotinae from Southeast Asia (Araneae, Amaurobiidae)
Author
Wang, Xin-Ping
Author
Xu, Xiang
Author
Li, Shuqiang
text
Zootaxa
2008
1853
1
17
journal article
10.5281/zenodo.183473
288ceb16-3a37-4ad7-aee8-e69bb2c1eea9
1175-5326
183473
Notiocoelotes vietnamensis
sp. nov.
Figs 30–43
,
44
Type
material:
Holotype
female:
Vietnam
, Huong Son, leaf litter,
1000m
,
May 9, 1998
, D. Silva leg. (
AMNH
);
1 male
paratype
:
Vietnam
, Rao An River,
13 km
W Huong Son, Route 8, Hatinh Tinh,
1100m
,
N18°20'50''
,
E105°14'41''
, pitfall trap,
May 21, 1998
, D. Silva leg. (
AMNH
);
1 female
paratype
:
Vietnam
, Rao An River,
13 km
W Huong Son, Route 8, Hatinh Tinh,
940m
,
N18°20'52''
,
E105°14'41''
E,
May 15, 1998
, D. Silva leg. (
AMNH
);
1 female
paratype
:
Vietnam
, Huong Son, pitfall trap,
680m
,
May 12, 1998
, D. Silva (
AMNH
).
Etymology:
The specific name refers to its
type
locality; adjective.
FIGURES 38–41.
Notiocoelotes
vietnamensis
sp. nov.
, female paratype from Huong Son, Vietnam.
38
Colulus, representated by setae (indicated by arrows);
39
PMS;
40
PLS;
41
Tarsus of the fourth leg, showing position of tarsal organ and trichobothria. AC = aciniform gland spigots; CY = cylindrical gland spigots; mAP = minor ampullate gland spigot.
Diagnosis:
Males of this new species are similar to
N. palinitropus
in having a long, coiled conductor but can be distinguished by the presence of a large median apophysis and the presence of an indentation on the distal conductor (
Figs 32–34
). Females are similar to
N. palinitropus
in having an elongated atrium, but this being much shorter than in
N. palinitropus
.
Description:
Female
holotype
: Medium sized coelotine, total length 5.20. Dorsal shield of prosoma 2.60 long, 1.77 wide; opisthosoma 2.60 long, 1.69 wide (
Fig. 36
). Eye arrangements of
N. vietnamensis
sp. nov.
is similar to that of
N. lingulatus
sp. nov.
AME smallest, approximately half the size of other eyes which are subequal and clustered (AME 0.08, ALE 0.16, PME 0.16, PLE 0.16); AME–PME separated by approximately PME diameter (
Fig. 35
). Chelicerae with 3 promarginal and 2 retromarginal teeth. Legs normal length (I 7.28; II 6.06; III 5.54; IV 7.82) (1st leg/ dorsal shield of prosoma = 2.79). Spinnerets with ALS short; PMS small, approximately 11 aciniform gland spigots, 2 cylindrical gland spigots, minor ampullate gland spigots not observed on the specimen examined; PLS second segment long, with approximately 11–12 aciniform gland spigots, and 2 cylindrical gland spigots (
Figs 38–40
). Epigynal teeth absent; atrium small, elongated, with a tongue-shaped posterior extension; copulatory ducts broad, covering most of spermathecae; spermathecae small, rounded, widely separated; spermathecal heads extended anteriorly, with distinct stalks (
Figs 30–31
).
FIGURES 42–43.
Notiocoelotes vietnamensis
sp. nov.
, female paratype from Huong Son, Vietnam.
42
Tarsal organ (indicated by black arrow) and the third trichobothrium (indicated by white arrow, the hair itself is absent);
43
Trichobothrium, base, from the tarsus of the fourth leg.
FIGURE 44.
Records of species of
Notiocoelotes
gen. nov.
Male
paratype
: Small sized coelotine, total length 3.20. Dorsal shield of prosoma 1.80 long, 1.75 wide; opisthosoma 1.40 long, 0.90 wide (
Fig. 37
). Eye sizes and interdistances: AME smallest, approximately half the size of other eyes which are approximately same size and clustered (AME 0.04, ALE 0.10, PME 0.09, PLE 0.10); AME–PME separated by approximately PME diameter. Chelicerae with 3 promarginal and 2 retromarginal teeth. Legs normal length (I 5.84; II 4.80; III 4.70; IV 6.12) (1st leg/ dorsal shield of prosoma = 3.24). Palpus without patellar apophysis; RTA occupying most of tibial length; lateral tibial apophysis large, strongly bifurcated; cymbial furrow long, slightly more than half of cymbial length; conductor long, extending proximally, coiling, semi-circular; conductor dorsal apophysis absent; conductor lamella large; median apophysis large, simple, not spoon-shaped; embolus filiform, originating proximally (
Figs 32–34
).
Habitats.
The spiders were collected by sifting leaf litter and by pitfall trapping in montane rain forest between 700–1100 meters elevation.
Distribution.
Vietnam
(Huong Son) (
Fig. 44
).