Berlandina litvinovi , Fomichev, Alexander A. & Marusik, Yuri M., 2017

Fomichev, Alexander A. & Marusik, Yuri M., 2017, A survey of East Palaearctic Gnaphosidae (Araneae). 8. New data on Berlandina and Gnaphosa from Mongolia, Zootaxa 4258 (1), pp. 69-80: 73-75

publication ID

https://doi.org/10.11646/zootaxa.4258.1.5

publication LSID

lsid:zoobank.org:pub:D1095E5E-2C9F-40C6-BA10-EADBEA56681C

persistent identifier

http://treatment.plazi.org/id/039C9E74-9666-FFF5-FF40-FB98DCDAF8FA

treatment provided by

Plazi

scientific name

Berlandina litvinovi
status

sp. n.

Berlandina litvinovi  sp. n.

Figs 9‒19View FIGURES 9 ‒ 19, 35View FIGURES 34 ‒ 35

Types. MONGOLIA: Khovd Aimag: holotype ♂ ( ISEA) and paratypes 2♂ 1♀ ( ISEA) 1♂ 1♀ ( ZMMUAbout 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)GoogleMaps  ; 1♀ ( ISEA), same locality, 45°46’N, 92°10’E, 7–8.05.2012 (AF)GoogleMaps  ; 1♀ ( ISEA) Arshantyn-Nuruu Mt. Range , 46°21’N, 91°13’E, mountain stony steppe with rocks, 1700‒2000 m, 16.05.2012 (AF).GoogleMaps 

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 11‒16View FIGURES 9 ‒ 19 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 17‒19View FIGURES 9 ‒ 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 1View FIGURES 1 ‒ 8, 9‒10View FIGURES 9 ‒ 19 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.

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 11‒16View FIGURES 9 ‒ 19; 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 17‒19View FIGURES 9 ‒ 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.

ZMMU

Zoological Museum, Moscow Lomonosov State University