Corresponding author: Yuri M. Marusik (
Academic editor: Shuqiang Li
Two new species:
Marusik YM, Fomichev AA, Omelko MM (2014) A survey of East Palaearctic Gnaphosidae (Araneae). 2. Two new
While studying material collected in Western Mongolia and particularly in Khovd Aimag we recognized two unknown species related to each other and to the recently described
Photographs were taken in dishes of different sizes with paraffin at the bottom. Specimens were photographed using an Olympus Camedia E-520 camera attached to an Olympus SZX16 stereomicroscope and the SEM JEOL JSM-5200 scanning microscope at the Zoological Museum, University of Turku. Digital images were prepared using “CombineZP” image stacking software. Illustrations of epigynes were made after maceration in 20% potassium hydroxide aqueous solution and exposition for a few minutes in an alcohol/water solution of Chlorazol Black. Lengths of leg segments were measured on the dorsal side. While describing spination of legs we use the following abbreviations: – femur – patella – tibia – metatarsus Institute for Systematic and Ecology of Animals, Novosibirsk Institute of Zoology, Chinese Academy of Sciences, Beijing Museum of Natural History, Budapest
MONGOLIA,
The specific name derived from Khovd Aimag, adjective.
The new species is related to
Male. Total length 8.5. Carapace: 4.05 long, 3.05 wide. Coloration: carapace and legs brown. Chelicerae dark brown. Sternum, labium and maxillae brown. Abdomen grayish-brown. Spinnerets light brown. Spination: I: Fe d1-1-0, p0-1-1; Ti v0-1-1; Mt v2-1-0. II: Fe d1-1-0, p0-1-1; Ti p1-0-0, v1-1-2; Mt v2-1-0. III: Fe d1-1-0, p0-1-1, r0-1-1; Pt p1, r1; Ti d1-0-0, p2-2-0, r2-1-1, v2-2-2; Mt d0-2-0, p1-1-0, r1-1-0, v2-2-0. IV: Fe d1-1-0, p0-1-1, r0-1-1; Pt r1; Ti p2-2-0, r2-1-1, v2-2-2; Mt d0-2-0, p1-1-0, r1-1-0, v2-2-0. Leg article length. I: 3.15+1.7+2.65+2.3+1.65. II: 3.0+1.6+2.4+2.3+1.65. III: 2.7+1.35+2.0+2.6+1.65. IV: 3.55+1.7+2.9+3.9+2.0.
Palp as in
Holotype of
Female unknown.
Known from the type locality only (
MONGOLIA,
Different maps provide different spelling of Monhhairhan, one alternative spelling is Monkh Khayrkhan.
The species is named after our colleague Sergei L. Esyunin from Perm University (Russia), noun.
Males of the new species differ from all congeners by the large embolic spine directed prolaterally. Females of
Male. Total length 14.4. Carapace: 7.3 long, 5.6 wide. Coloration: carapace and legs brown. Labium, maxillae and sternum dark brown. Chelicerae dark brown, almost black. Abdomen grayish-brown. Spinnerets light brown. Spination: I: Fe d1-1-0, p0-0-1; Ti v0-1-1; Mt v0-2-0. II: Fe d1-1-0, p0-1-1; Ti v0-0-1; Mt v0-2-0. III: Fe d1-1-0, p0-1-1, r0-1-1; Pt p1, r1; Ti d1-0-0, p3-1-1, r2-1-1, v2-2-2; Mt d0-2-0, p2-1-0, r1-1-0, v0-3-2. IV: Fe d1-1-0, p0-1-1, r0-1-1; Pt r1; Ti p2-3-3, r3-2-3, v4-1-4; Mt d0-3-0, p3-4-1, r3-1-0, v3-3-3. Leg article length. I: 5.7+3.3+5.25+4.4+2.65. II: 5.3+3.0+4.75+4.4+2.75. III: 4.85+2.5+3.85+5.05+2.65. IV: 6.0+3.0+5.2+7.25+3.05.
Palp as in
Holotype of
Female. Total length: 15.5. Carapace: 8.3 long, 6.15 wide. Coloration as in male. Spination: I: Fe d1-1-0, p0-0-1; Ti v0-1-1; Mt v0-2-0. II: Fe d1-1-0, p0-1-1; Ti p0-0-1, v0-1-2; Mt p1-0-0, v0-2-0. III: Fe d1-1-0, p0-1-1, r0-1-1; Pt p1, r1; Ti d2-0-0, p3-1-1, r2-1-1, v2-2-2, Mt d0-2-0, p2-1-0, r2-1-0, v2-0-2. IV: Fe d1-1-0, p0-1-1, r0-1-1; Pt r1; Ti p3-1-1, r2-1-2, v2-3-2; Mt d0-2-0, p2-2-0, r2-1-1, v2-1-2. Leg length. I: 5.9+3.6+4.9+3.95+2.8. II: 5.55+3.35+4.55+4.0+2.8. III: 5.05+2.75+3.8+4.7+2.8. IV: 6.15+3.3+5.3+7.1+3.2.
Epigyne as in
Epigyne of
Known only from two localities in Khovd Aimag (
MONGOLIA:
The type series of this species was collected at the same place where the type locality of
Male palp of
Collecting places of
Although
It seems that the three Mongolian species treated here, all from Khovd Aimag, form a monophyletic group, which shares the same characters such as the short tibial apophysis (not longer than tibia); raised base of embolus; base of embolus with spine in anterior part; filamentous and rounded embolus with serrated prolateral edge; and simple median apophysis with claw-like tip. Members of other Asian species groups may have any mentioned character but never all together. For example some species in the
We thank R.V. Yakovlev (Barnaul, Russia), A.N. Nakonechnyi (Novosibirsk, Russia), A.I. Shmakov (Barnaul, Russia), G.G. Khabiev (Aktash, Russia), U. Beket (Bayan-Ölgii, Mongolia) for organizing and undertaking an expedition to Mongolia, in which the part of material treated in this paper was collected. Material collected by Z. Kaszab in Mongolia was kindly provided by late S. Mahunka (NHMB, Budapest). Also, we thank S. Koponen (University of Turku) and R.Yu. Dudko (ISEA) for providing museums facilities. English of the earlier draft was kindly checked by Donald Buckle (Saskatoon, Canada) and David John Court (Singapore). This work was supported in part by the Russian Foundation for Basic Research (grant 12-04-01548).