Stenaelurillus latibulbis 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 : 75-77

Stenaelurillus latibulbis Wesołowska, 2014

Figs 330–335 , 513

Stenaelurillus latibulbis Wesołowska, 2014b: 605 , figs 6A–E (D♂ ♀); ♂ holotype in MRAC, not examined.

Diagnosis

The female of S. latibulbus is closest to that of S. kavango from Namibia (cf. Wesołowska, 2014b: fig. 5), but can easily be distinguished by the much shorter insemination ducts and the round, rather than bean-shaped, primary spermathecae ( Fig. 335 ); yet, the copulatory openings are strongly sclerotized ( Fig. 334 ) as compared to all the species of Stenaelurillus known to us. The male was described and diagnosed by Wesołowska (2014b: figs 6A–C), and seems to differ in the characteristic shape of the VTA, the distal projection of the functional tegulum and the conformation of the embolus, which unfortunately was shown by Wesołowska (2014b) too diagrammatically. See also remarks above under Diagnosis of S. fuscatus .

Material examined

ZAMBIA: 1 ♀, Luambe, ca 12°27′ S, 32°08′ E, 25 Aug. 1956, R.P. Th. de Caters leg. ( MRAC 91613, MRAC 91614).

Description

Male

See Wesołowska (2014b).

Female (in poor condition, almost without scales)

Measurements: carapace: 3.40 long, 2.50 wide, 1.60 high. Abdomen: 4.80 long, 3.65 wide. Ocular area: 1.10 long, 1.65 wide anteriorly, 1.60 wide posteriorly. Cheliceral length 0.70. Clypeal height 0.40. Diameter of AME 0.50. Length of leg segments: I 1.50 + 0.90 + 0.80 + 0.60 + 0.60 (4.40); II 1.50 + 0.90 + 0.85 + 0.60 + 0.60 (4.45); III 2.30 + 1.30 + 1.60 + 1.80 + 0.70 (7.70); IV 2.30 + 1.15 + 1.60 + 2.10 + 0.75 (7.90). Leg formula IV,III,II,I. Leg spination: I: Fm d 0-1-1-5; Pt pr 1; Tb pr 1-1, v 1-1-2ap; Mt pr 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 1-0-2-5; 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 1-0-1-5; 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 1-0-2ap. Coloration (in alcohol; Figs 330–333 ). Carapace brown, eye field dark brown. Clypeus and cheeks dark brown, covered with dark brown hairs. Sternum yellow. Endites and labium dark yellow. Chelicerae brown. Abdomen: dorsum brown, with a pair of large dorso-lateral white spots on its rear half and a wide triangular white figure on its caudal part; venter yellow, with small dots of dark brown hairs forming two rows. Book-lung covers pale yellow. Spinnerets brown-yellow. All legs brown, covered with dark brown hairs. Epigyne and spermathecae as in Figs 334–335 ; the epigynal plate flat, without visible structures; the copulatory openings look like a pair of black beans, widely separated; the insemination ducts wide and heavily sclerotized, forming C-shaped tubes running towards the median line; the primary spermathecae round.

Distribution

Two localities in Congo and one in Zambia ( Fig. 513 ) ( Wesołowska 2014b; present data). This is the first record of this species since its original description.

Figures

Figs 330–335. Stenaelurillus latibulbis Wesołowska, 2014, ♀ from Zambia (Luambe). 330–333. General appearance. 334. Epigyne, ventral view. 335. Spermathecae, dorsal view. Abbreviations: see Material and methods. Scale bars: 330–333 = 1 mm; 334–335 = 0.1 mm.

Fig. 513. Collecting localities of six African species of Stenaelurillus Simon, 1885.