Serratacosa medogensis, Wang & Peng & Zhang, 2021

Wang, Lu-Yu, Peng, Xian-Jin & Zhang, Zhi-Sheng, 2021, Serratacosa, a new genus of Lycosidae (Araneae) from the southern slopes of the Eastern Himalayas, European Journal of Taxonomy 762, pp. 99-107 : 99-102

publication ID

https://doi.org/ 10.5852/ejt.2021.762.1455

publication LSID

lsid:zoobank.org:pub:01616041-C40E-4076-98EF-1BB1ED0C9706

DOI

https://doi.org/10.5281/zenodo.5191646

persistent identifier

https://treatment.plazi.org/id/734E2179-3E8D-4E2A-9AB7-D3947CC7F01B

taxon LSID

lsid:zoobank.org:act:734E2179-3E8D-4E2A-9AB7-D3947CC7F01B

treatment provided by

Felipe

scientific name

Serratacosa medogensis
status

gen. et sp. nov.

Serratacosa medogensis View in CoL gen. et sp. nov.

urn:lsid:zoobank.org:act:734E2179-3E8D-4E2A-9AB7-D3947CC7F01B

Figs 1–3 View Fig View Fig View Fig , 6 View Fig

Diagnosis

This new species most closely resembles S. multidontata ( Qu, Peng & Yin, 2010) ( Figs 4–5 View Fig View Fig ), but differs from the latter by the following characters. Lateral projection of the median apophysis with a blunt end, slightly touching lateral edge of cymbium in the new species ( Figs 1C–D View Fig , 2A–B View Fig , 3C–F View Fig ), whereas distal end truncate, almost overlapping lateral edge of cymbium in ventral view in S. multidontata ( Figs 4A– B View Fig , 5C–F View Fig ). Septum wider than long and spermathecal heads spherical with fine spermathecal stalks in the new species ( Figs 2C–D View Fig , 3G–H View Fig ), whereas septum longer than wide and spermathecal heads oval with thick spermathecal stalks in S. multidontata ( Figs 4C–D View Fig , 5G–H View Fig ).

Etymology

The specific epithet refers to the type locality ‘Medog’ (‘Ḅü’ in Chinese); noun in apposition.

Type material

Holotype CHINA • ♂; Tibet, Medog County, Beibeng Township ; 29°14.376′ N, 95°10.675′ E; alt. 894 m; 23 May 2019; L.Y. Wang, P. Liu, T. Yuan and H. Wang leg.; SWUC-T-LY-12-01 . GoogleMaps

Paratypes CHINA • 6 ♂♂, 3 ♀♀; same collection data as for holotype; SWUC-T-LY-12-02 to 12-10 GoogleMaps 4 ♂♂, 3 ♀♀; Medog County; 29°19.470′ N, 95°19.618′ E; alt. 1116 m; 22 May 2019; L.Y. Wang, P. Liu, T. Yuan and H. Wang leg.; SWUC-T-LY-12-11 to 12-17 GoogleMaps 3 ♂♂, 2 ♀♀; Medog County, Medog Town , Yarang Village; 29°17.758′ N, 95°16.827′ E; alt. 761 m; 22 May 2019; L.Y. Wang, P. Liu, T. Yuan and H. Wang leg.; SWUC-T-LY-12-18 to 12-22 GoogleMaps 4 ♂♂, 1 ♀; Medog County, Beibeng Township ; 29°14.866′ N, 95°11.022′ E; alt. 924 m; 23 May 2019; L.Y. Wang, P. Liu, T. Yuan and H. Wang leg; SWUC-T-LY-12-23 to 12-27 GoogleMaps 4 ♂♂, 1 ♀; Medog County; 29°19.470′ N, 95°19.618′ E; alt. 1116 m; 23 May 2019; L.Y. Wang, P. Liu, T. Yuan and H. Wang leg.; SWUC-T-LY-12-28 to 12-32 GoogleMaps 1 ♀; Medog County, Medog Town , Yarang Village; 29°17.758′ N, 95°16.827′ E; alt. 761 m; 28 Jun. 2018; L.Y. Wang, Z.S. Wu and Y.N. Mu leg.; SWUC-T-LY-12-33 GoogleMaps 4 ♀♀; Medog County, Beibeng Township ; 29°14.376′ N, 95°10.675′ E; alt. 894 m; 28 Jun. 2018 L.Y. Wang, Z.S. Wu and Y.N. Mu leg.; SWUC-T-LY-12-34 to 12-37 GoogleMaps 1 ♀; Medog County; 29°19.470′ N, 95°19.618′ E; alt. 1116 m; 28 Jun. 2018; L.Y. Wang, Z.S. Wu and Y.N. Mu leg; SWUC-T-LY-12-38 GoogleMaps .

Description

Male (holotype, Fig. 3A View Fig )

MEASUREMENTS. Total length 9.03. Carapace 5.13 long, 3.69 wide; opisthosoma 4.09 long, 2.68 wide. Eye sizes and interdistances: AME = 0.21, ALE = 0.17, PME = 0.49, PLE = 0.39; AME–AME = 0.11, AME–ALE = 0.09, PME–PME = 0.32, PME–PLE = 0.35. Clypeus height 0.16.

LEG MEASUREMENTS. I = 13.35 (3.81, 4.33, 3.01, 2.20); II = 12.75 (3.55, 4.33, 2.95, 1.92); III = 11.82 (3.33, 3.65, 3.11, 1.73); IV = 16.98 (4.50, 4.84, 5.26, 2.38).

MALE PEDIPALP ( Figs 1 View Fig , 2A–B View Fig , 3C–F View Fig ). Subtegulum distinct in ventral view, located baso-prolaterally. Embolus slender and slightly sinuous. Conductor small and membranous. Median apophysis serrated, ventral surface with semicircular protruding lobe, strongly sclerotized, dorsal surface with oval sclerite. Terminal apophysis strong twisted, distal end grooved.

Female (SWUC-T-LY-12-02, Fig. 3B View Fig )

MEASUREMENTS. Total length 12.36. Carapace 6.65 long, 4.49 wide; opisthosoma 6.06 long, 3.69 wide. Eye sizes and interdistances: AME = 0.28, ALE = 0.21, PME = 0.58, PLE = 0.48; AME–AME = 0.19, AME–ALE = 0.10, PME–PME = 0.43, PME–PLE = 0.44. Clypeus height 0.28.

LEG MEASUREMENTS. I = 14.82 (4.34, 4.88, 3.20, 2.40); II = 14.17 (4.06, 4.79, 3.14, 2.18); III = 13.57 (3.84, 4.22, 3.43, 2.08); IV = 19.17 (4.98, 6.01, 5.59, 2.59).

EPIGYNE ( Figs 2C–D View Fig , 3G–H View Fig ). Epigyne with inverted T-shaped septum, median part wider than long. Copulatory openings located on shoulders of septum. Spermathecal heads large and spherical, with several small buds. Spermathecal stalks short, curved. Fertilization ducts hook-like.

Distribution

China (Tibet, Medog County) ( Fig. 6 View Fig ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Lycosidae

Genus

Serratacosa

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