A survey of East Palaearctic Gnaphosidae (Araneae). 8. New data on Berlandina and Gnaphosa from Mongolia
Author
Fomichev, Alexander A.
Author
Marusik, Yuri M.
text
Zootaxa
2017
4258
1
69
80
journal article
33163
10.11646/zootaxa.4258.1.5
bdf2db84-05b5-4c94-bfa7-7cf9274fda9b
1175-5326
569169
D1095E5E-2C9F-40C6-BA10-EADBEA56681C
Berlandina litvinovi
sp. n.
Figs 9‒19
,
35
Types
.
MONGOLIA
:
Khovd
Aimag:
holotype
♂
(
ISEA
) and
paratypes
2♂
1♀
(
ISEA
)
1♂
1♀
(
ZMMU
)
36 km
SW from
Altai Village
,
Bodonchiyn-Gol River Valley
,
45°46’N
,
92°12’E
, tugay (gallery forest), night, attracted by light,
1280 m
, 17‒
18.05.2015
(AF)
;
1♀
(
ISEA
), same locality,
45°46’N
,
92°10’E
, 7–8.05.2012 (AF)
;
1♀
(
ISEA
)
Arshantyn-Nuruu Mt. Range
,
46°21’N
,
91°13’E
, mountain stony steppe with rocks,
1700‒2000 m
,
16.05.2012
(AF).
Etymology.
The specific name is a patronym in honour of Anton N. Litvinov (Terekty,
Kazakhstan
), the friend of AF, who helped a lot in spider collecting and organization of field trips.
Diagnosis.
Males of the new species differ from those of the similar species
B. koponeni
by tegulum bulged prolaterally (
Bu
), by less curved (as viewed from above) median apophysis, absence of the ridge in embolic division and much longer tibial apophysis (cf.
Figs 11‒16
and figs
30‒36 in
Marusik
et al.
2014a
). Females of
B. litvinovi
sp. n.
are similar to these of
B. ubsunurica
Marusik & Logunov, 1995
and
B. nenilini
Ponomarev & Tsvetkov, 2006
. They differ from two aforementioned species by wide fovea, less pronounced anterior protrusion on the edge of fovea and by less protruding outgrowths of lateral pockets (cf.
Figs 17‒19
and figs
10‒15 in
Marusik
et al.
2014a
). Both male and female of the new species can be distinguished from the closest species
B. koponeni
by dark coloration (cf.
Figs 1
,
9‒10
and fig.
37 in
Marusik
et al.
2014a
).
Description.
Male (
holotype
). Total length 5.4. Carapace: 2.25 long, 1.8 wide. Carapace brown with black margins, spots and radial stripes. Chelicerae and labium dark-brown. Maxillae light-brown. Sternum brown. Legs: femora, patellae and tibiae gray-brown with yellow spots and stripes, metatarsi and tarsi dirty-yellow. Palps yellow-gray. Abdomen gray dorsally with light longitudinal stripe, venter yellow. Spinnerets yellow-gray.
FIGURES 9‒19.
Habitus and copulatory organs of
Berlandina litvinovi
sp. n.
9‒10 female and male habitus, dorsal; 11‒13 male palp, prolateral, ventral and retrolateral respectively; 14‒16 bulb, anterior, ventral and retrolateral; 17 intact epigyne, ventral; 18‒19 macerated epigyne, ventral and dorsal. Scale = 0.2 mm if not otherwise indicated.
Abbreviations.
Bu
tegular bulge,
Cf
cymbial furrow.
Leg measurements:
Fe Pt Ti Mt Ta Total I 1.7 0.9 1.25 1.1 0.9 5.85 II 1.55 0.85 1.05 1.05 1.0 5.5 III 1.45 0.75 0.9 1.35 0.9 5.35 IV 2.15 1.0 1.5 2.25 1.1 8.0 Leg spination:
Fe Pt Ti Mt
I d1-1-0
v2-1
-
2 v
0-2-2
II d1-1-0 p0-0-1 p0-0-
1 v
1-1-
2 v
0-2-2
III d1-1-1 p0-1-1 r0-1-1 p1-0 r1-0 d0-1-0 p1-1-1 r0-1-
1 v
2-2-2 d0-1-0 p1-1-0 r1-1-0 v0-2-
2 IV
d1-1-0 p0-0-1 r0-0-1 r1-0 d1-0-1 p1-1-1 r1-1-
1 v
2-2-2 d1-2-0 p1-1-0 r1-1-0 v0-2-2 Palp as in
Figs 11‒16
; tibial apophysis large, sharply pointed, equal in length to tibia; cymbium with slanting prolateral furrow (
Cf
) against anterior edge of tibial apophysis; tegulum bulged (
Bu
) prolaterally; median apophysis longer than embolus; embolus with bifid tip.
Female. Total length 7.4. Carapace: 2.4 long, 1.95 wide. Coloration as in male.
Leg measurements:
Fe Pt Ti Mt Ta Total I 1.8 0.95 1.2 1.1 0.95 6.0 II 1.55 0.85 1.05 1.05 0.9 5.4 III 1.45 0.8 0.9 1.3 0.9 5.35 IV 2.15 1.05 1.55 2.15 1.15 8.05 Leg spination:
Fe Pt Ti Mt
I d1-1-0 p0-0-
1 v
2-1-
2 v
0-2-2
II d1-1-0 p0-0-
1 v
1-1-
2 v
2-0-2
III d1-1-1 p0-1-1 r0-1-1 p1-0 r1-0 d1-0-0 p1-1-1 r0-1-
1 v
2-2-2 d0-1-0 p1-1-0 r1-1-0
v2
-0-
2 IV
d1-1-0 p0-0-1 r0-0-1 r1-0 d1-0-1 p1-1-1 r1-1-
1 v
2-2-2 d1-2-0 p1-1-0 r1-1-0 v0-2-2 Epigyne as in
Figs 17‒19
; atrium oval shaped with weakly developed septum, twice wider than high; receptacles round, located posteriorly from atrium, spaced by less than one diameter.
Size variations. Males vary from 5.0 to
5.4 in
the body length, carapace 2.05–2.25 long and 1.65–1.9 wide (n=4). Females vary from 5.0 to
7.4 in
the body length, carapace 2.0–2.4 long and 1.6–1.95 wide (n=3).
Distribution.
Known from the
type
locality only.
Comments.
Unlike most of
Berlandina
species, which inhabit arid habitats (steppe and various
types
of deserts), the new species is found also in the wet riparian forest subject to periodic flooding.