Stenaelurillus siyamae, Logunov & Azarkina, 2018

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 : 99-101

Stenaelurillus siyamae sp. nov.

urn:lsid:zoobank.org:act:A0346942-CE12-48A3-9E4B-BAB165A84908 Figs 442–447 , 510

Diagnosis

By the body coloration, this species is very similar to another Sudanese species, S. sudanicus also described and known only from the holotype female ( Figs 452–453 ), but can easily be distinguished from it by the position of the copulatory openings (widely separated, facing each other in S. siyamae sp. nov. and disposed to the epigastric furrow, facing backwards in S. sudanicus ) and the longer, S-shaped insemination ducts (cf. Figs 443 and 453 ).

Etymology

This species is named after the collector of the holotype, Ms M. Siyam ( South Sudan).

Material examined

Holotype

SUDAN: ♀, Dinder NP, Khor Galaga [= Khor Qalaqu], Crocodile Lake, 12°39′3.81″ N, 35°01′8.12″ E, 467 m a.s.l., pitfall traps, 4 Apr. 2013, M. Siyam leg. ( ZMB Arach 48785).

Comparative material examined

SUDAN: 1 ♀, holotype of Stenaelurillus sudanicus Wesołowska, 2014 ( Figs 448–453 , 510), Northern Province, Kerma, 19°36′ N, 30°24′ E, in house, Jan. 1989, L. Chaix leg. ( MHNG).

Description

Male

Unknown.

Female

The holotype is badly damaged, with almost all legs being detached from the carapace. Measurements: carapace: 2.00 long, 1.60 wide, 1.00 high. Abdomen: 2.30 long, 1.80 wide. Ocular area: 0.90 long, 1.30 wide anteriorly, 1.25 wide posteriorly. Cheliceral length 0.50. Clypeal height 0.25. Diameter of AME 0.35. Leg spination: I: Fm d 0-1-1-5; Pt pr 1; Tb pr 1-1, v 1-2; Mt pr 0-1ap, v 2-2ap. Coloration (in alcohol; Figs 444–447 ). Carapace brown, covered with dark brown hairs, with two longitudinal stripes covered with white scales; sides with marginal stripes of white hairs. Sternum yellow. Endites and labium brownish yellow. Chelicerae brownish yellow, covered with white hairs. Clypeus high, yellowish brown, covered with brownish hairs and with a dark brown stripe running from the carapace sides towards ALEs. Abdomen: venter greyish yellow; dorsum brownish, with two longitudinal wide brown stripes covered with brownish hairs and a narrow longitudinal median stripe covered with white hairs; each side with two longitudinal stripes covered with white hairs. Book-lung covers yellow-grey. Spinnerets brownish yellow, with brown tips. Legs brownish yellow, with patches and semi-rings of dark brown hairs. Palps yellow, covered with white hairs and brown bristles. Epigyne and spermathecae as in Figs 442–443 : the epigynal plate flat, round, with a pair of very large, ovoid copulatory openings, widely separated and facing towards each other; epigynal pocket present, wide and deep; insemination ducts short and wide; primary spermathecae large, bean-shaped.

Distribution

The type locality only ( Fig. 510 ).

Figures

Figs442–447.Stenaelurillussiyamaesp.nov.,holotype,♀.442.Epigyne,ventralview.443.Spermathecae, dorsal view. 444–447. General appearance. Scale bars: 442–443 = 0.1 mm; 444–447 = 1 mm.

Figs 448–453. Stenaelurillus sudanicus Wesołowska, 2014, holotype, ♀. 448–451. General appearance. 452. Epigyne, ventral view. 453. Spermathecae, dorsal view. Scale bars: 448–451 = 1 mm; 452–453 = 0.1 mm.

Fig. 510. Collecting localities of seven African species of Stenaelurillus Simon, 1885.