Stenaelurillus furcatus Wesołowska, 2014

Logunov, Dmitri V. & Azarkina, Galina N., 2018, Redefinition and partial revision of the genus Stenaelurillus Simon, 1886 (Arachnida, Araneae, Salticidae), European Journal of Taxonomy 430, pp. 1-126 : 34-37

publication ID

https://doi.org/ 10.5852/ejt.2018.430

publication LSID

lsid:zoobank.org:pub:5902A879-CD11-4CC3-A802-7C0D2F8059BE

DOI

https://doi.org/10.5281/zenodo.3793753

persistent identifier

https://treatment.plazi.org/id/039487C1-165F-776E-FDC2-29BD550FFB8F

treatment provided by

Valdenar

scientific name

Stenaelurillus furcatus Wesołowska, 2014
status

 

Stenaelurillus furcatus Wesołowska, 2014 View in CoL

Figs 20–21 View Figs 14–29 , 119–135 View Figs 119–127 View Figs 128–135 , 511

Stenaelurillus furcatus Wesołowska, 2014b: 601 View in CoL View Cited Treatment , fig. 3A–G (D♂ ♀); ♂ holotype in BMNH, not examined.

Diagnosis

The males of S. furcatus can easily be distinguished from those of all other species of Stenaelurillus by the unique bifurcated RTA, the finger-shaped, pointed distal projection and the hook-shaped embolus ( Figs 120, 122 View Figs 119–127 ); only the male of S. jagannathae from India has a similar conformation of the embolus (cf. Vidhel et al. 2015: figs 3–11). The female of S. furcatus is most similar to that of S. guttiger ( Figs 227–230 View Figs 227–238 ), from which it differs in having a much wider epigynal pocket situated right between the copulatory openings (disposed proximally in S. guttiger ) and visibly narrower insemination ducts and primary receptacles. The female of S. furcatus is also similar to those of S. latibulbus and S. kavango (cf. Figs 334–335 View Figs 330–335 and Wesołowska 2014b: fig. 5), but differs in the shape and proportions of the insemination ducts and the primary spermathecae ( Figs 126–127 View Figs 119–127 ).

Material examined

NAMIBIA: 8 ♂♂, 1 ♀, Etosha National Park, 18°51′20.1″ S, 16°19′45.5″ E, Mar. 1999, A. Russell- Smith leg. ( MRAC 215.642).

Description

Male

Measurements: carapace: 2.20–2.40 long, 1.50–1.75 wide, 1.05 high. Abdomen: 1.70–2.30 long, 1.65– 1.70 wide. Ocular area: 0.90 long, 1.35 wide anteriorly, 1.30 wide posteriorly. Cheliceral length 0.60. Clypeal height 0.25–0.30. Diameter of AME 0.35–0.40. Length of leg segments: I 1.10 + 0.60 + 0.65 + 0.45 + 0.45 (3.25); II 1.15 + 0.70 + 0.70 + 0.60 + 0.60 (3.75); III 1.70 + 0.90 + 1.15 + 1.35 + 0.60 (5.70); IV 1.50 + 0.90 + 1.10 + 1.45 + 0.70 (5.65). Leg formula III,IV,II,I. Leg spination: I: Fm d 0-1-1-5; Pt pr 1; Tb pr 1-1, v 1-1-2ap; Mt pr 1-1ap, rt 0-1ap, v 2-2ap. II: Fm d 0-1-2-5; Pt pr 1; Tb pr 1-1, v 1-1- 2ap; Mt pr and rt 1-1ap, v 2-2ap. III: Fm d 1-2-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1-1, v 0-1-2ap; Mt d 2-1-0, pr and rt 1-0-2ap, v 0-2-2ap. IV: Fm d 1-1-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-0-2ap; Mt d 2-1-0, pr 1-1-2ap, rt 1-0-2ap, v 1-2-2ap. Coloration (in alcohol; Figs 132–135 View Figs 128–135 ). Carapace brown, covered with long dark brown recumbent scales, laterally with wide marginal stripes of white scales, dorsally with two longitudinal stripes of white scales starting from PMEs and running to the rear end of the carapace. Sternum yellow. Endites and labium yellow. Chelicerae dark brown, sparsely covered with long white hairs. Clypeus and cheeks brown, sparsely covered with long white hairs. Abdomen: dorsum brown, covered with dark brown recumbent scales, medially with a longitudinal stripe of white hairs; venter grey-yellow. Book-lung covers yellow. Spinnerets yellow, with brownish

(the ventral pair) to dark brown (the dorsal pair) tips. All legs yellow. Coxae II ventrally with dark brown spots. All Fm ventro-proximally with dark brown spots, which are poorly marked on legs I and IV in some specimens. All Pt ventrally with dark brown spots (poorly marked in some specimens). Tb, Mt and Tr I brown, covered with dark brown hairs. Tb II ventrally covered with dark brown hairs. Palps yellow, but Fm sparsely covered with long white hairs; Fm prolatero-distally, Tb and the proximal part of cymbium prolaterally covered with dark brown hairs. Palpal structure as in Figs 119–125 View Figs 119–127 : VTA bulgeshaped; RTA bifurcated, claw-like; the cymbium simple, without a cymbial lateral process; the tegulum small, poorly marked, without a tegular process; the functional tegulum elongated, with well-developed, pointed proximal (PP) and finger-shaped distal (DP) projections; the embolus thick, hook-shaped, with a heavy elongated base having a short projection directed distad.

Female

Measurements: carapace: 2.50 long, 2.15 wide, 1.50 high. Abdomen: 3.50 long, 2.55 wide. Ocular area: 1.00 long, 1.45 wide anteriorly, 1.40 wide posteriorly. Cheliceral length 0.65. Clypeal height 0.35. Diameter of AME 0.40. Length of leg segments: I 1.15 + 0.70 + 0.60 + 0.50 + 0.45 (3.40); II 1.20 + 0.75 + 0.65 + 0.55 + 0.45 (3.60); III 2.00 + 1.00+ 1.40 + 1.55 + 0.65 (6.60); IV 1.80 + 0.80 + 1.30 + 1.70 + 0.70 (6.30). Leg formula III,IV,II,I. Leg spination: I: Fm d 0-1-1-5; Pt pr 1; Tb pr 1-1, v 1-1-2ap; Mt pr 1-1ap, rt 0-1ap, v 2-2ap. II: Fm d 0-1-2-5; Pt pr 1; Tb pr 1-1, v 1-1-2ap; Mt pr 1-1ap, rt 0-1ap, v 2-2ap. III: Fm d 1-2-5; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-0-2ap; Mt d 2-1-0, pr and rt 1-0-2ap, v 0-2-2ap. IV: Fm d 1-1-4; Pt pr and rt 1; Tb d 1-0-0, pr and rt 1-1-1-1, v 1-0-2ap; Mt d 2-1-0, pr 1-1-2ap, rt 1-0-2ap, v 1-2-2ap. Coloration (in alcohol; Figs 128–131 View Figs 128–135 ) as in the male. All legs yellow. Coxae without spots. Fm I and II prolaterally with a dark brown spot and retrolaterally with a small proximal dark brown spot. Fm III with small pro- and retrolateral proximal dark brown spots. Tb I and II prolaterally with two dark brown spots (proximal and distal). Fm III and IV dorsally with proximal and distal spots of dark brown scales. Tb IV with proximal and distal spots of dark brown scales. Palps yellow, but palpal Fm with a poorly marked prolateral brown spot. Epigyne and spermathecae as in Figs 126–127 View Figs 119–127 : the epigynal plate flat, without visible structures; epigynal pocket present, wide, cone-shaped, situated between the large ovoid, widely separated copulatory openings; the insemination ducts relatively short, tube-shaped, forming C-shaped figures; the primary spermathecae medium-sized and round.

Distribution

A few localities in Namibia ( Fig. 511 View Fig ) ( Wesołowska 2014b; present data).

MRAC

Musée Royal de l’Afrique Centrale

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Stenaelurillus

Loc

Stenaelurillus furcatus Wesołowska, 2014

Logunov, Dmitri V. & Azarkina, Galina N. 2018
2018
Loc

Stenaelurillus furcatus Wesołowska, 2014b: 601

Wesolowska W. 2014: 601
2014
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF