Stenaelurillus kronestedti Próchniewicz & Heçiak, 1994

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 : 72-75

Stenaelurillus kronestedti Próchniewicz & Heçiak, 1994

Figs 317–329 , 512

Stenaelurillus kronestedti Próchniewicz & Heçiak, 1994: 39 , figs 7a–k, 8a–e (D♂ ♀); ♂ holotype in NHRS, examined.

Diagnosis

This species is most similar to S. albopunctatus from Kenya ( Figs 40–48 ), with both species having very similar coloration and an almost identical conformation of the embolic division in the males: viz., the hook-shaped embolus with an anvil-shaped basis. Stenaelurillus kronestedti can be readily distinguished from S. albopunctatus by the hook-shaped RTA, the pointed and narrower DTA and the position of the row of long and dense, black bristles on the DTA ( Fig. 318 ) in the males and by the most widely separated copulatory openings (more than two diameters) and the markedly longer insemination ducts in the females ( Fig. 323 ).

Material examined

Holotype

TANZANIA: ♂, camp site at Lake Manyara, 3°36′48.9″ S, 35°53′09.0″ E, 2 Jan. 1972, T. Kronestedt leg. ( NHRS 043 ).

Paratype

TANZANIA: 1 ♀, together with the holotype ( NHRS 043).

Description

Male

Based on the holotype ( Figs 322 , 324–326 ); the left palp is detached and broken into three separate parts, several legs are detached).

Measurements: carapace: 2.75 long, 2.00 wide, 1.30 high. Abdomen: 2.45 long, 1.70 wide. Ocular area: 1.15 long, 1.56 wide anteriorly, 1.50 wide posteriorly. Cheliceral length 0.58. Clypeal height 0.20. Diameter of AME 0.43. Length of leg segments: I 1.40 + 0.68 + 0.80 + 0.60 + 0.53 (4.01); II 1.43 + 0.75 + 0.80 + 0.63 + 0.53 (4.14); III 2.10 + 1.08 + 1.40 + 1.75 + 0.60 (7.65); IV 2.00 + 0.90 + 1.35 + 1.80 + 0.75 (6.80). Leg formula III,IV,II,I. Leg spination: I: Fm d 0-1-1-5; Pt pr 0-1-0; Tb pr 1-1, v 1-1- 2ap; Mt pr 1-1ap, v 2-2ap. II: Fm d 0-1-1-5; Pt pr 0-1-0; Tb pr 1-1, rt 0-1, v 1-1; Mt d, pr and rt 1-1ap, v 2-2ap. III: Fm d 0-1-1-5; Pt pr and rt 0-1-0; Tb d 1-0-0, pr and rt 1-1-1, v 1-0-2ap; Mt d 2-2, pr 1-0-2ap, rt 2ap, v 0-0-1-2ap. IV: Fm d 0-1-1-5; Pt pr and rt 0-1-0; Tb pr and rt 1-1-1, v 1-0-2ap; Mt d 2-2, pr 1-1-2ap, rt 1-0-2ap, v 0-2-2ap. Coloration (in alcohol; Figs 322 , 324–326 ). Carapace red-brown, densely covered with brown recumbent scales, with two wide longitudunal stripes of white scales and wide marginal

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white stripes of scales; eye field dark brown. Clypeus light brown, sparsely covered with white hairs. Sternum bright yellow, covered with long white hairs. Endites, labium and chelicerae bright yellow, tinged with brown. Abdomen: dorsum dark brown, densely covered with brown recumbent scales, with three white spots on its rear half and large brown scutum on its front half; sides and venter bright yellow, with sparse brown speckles. Book-lung covers bright yellow. Spinnerets yellow, but the dorsal pair with dark brown tips. All legs yellow, tinged with brown, but legs I darker: Pt, Tb and Mt ventrally and Tr completely dark brown. Palps yellowish brown, dorsally covered with white hairs. Palpal structure as in Figs 317–321 : VTA bulge-shaped; RTA hook-shaped, its ventral branch directed anteriad; DTA present as a thick, dorsally pointed process that bears a row of thick black bristles along its entire length; the cymbium without a cymbial lateral process; the tegulum is relatively small, without a tegular process; the functional tegulum wide and elongated, with well-developed proximal (PP) and wide, blade-shaped distal (DP) projections; the embolus relatively short and thick, with an anvil-shaped base.

Female (paratype, Figs 327–329 )

Measurements: carapace: 3.10 long, 2.20 wide, 1.50 high. Abdomen: 3.25 long, 2.75 wide. Ocular area: 1.13 long, 1.58 wide anteriorly, 1.58 wide posteriorly. Cheliceral length 0.65. Clypeal height 0.18. Diameter of AME 0.45. Length of leg segments: I 1.50 + 0.73 + 0.75 + 0.45 + 0.40 (3.83); II 1.50 + 0.81 +0.78 + 0.75 + 0.33 (4.17); III 2.40 + 1.20 + 1.40 + 1.85 + 0.65 (7.50); IV 2.25 + 1.00 + 1.50 + 1.95 + 0.80 (7.50). Leg formula III/IV,II,I. Leg spination: I: Fm d 0-1-1-5; Pt pr 0-1-0; Tb pr 1-1, v 1-1- 2ap; Mt pr and rt 1-1ap, v 2-2ap. II: Fm d 0-1-1-5; Pt pr 0-1-0; Tb pr 1-2, v 1-1-2ap; Mt d 1-1, pr and rt 1-2ap, v 2-2ap. III: Fm d 0-1-2-5; Pt pr and rt 0-1-0; Tb d 1-0, pr and rt 1-1-1-1, v 1-0-2ap; Mt d 2-2, pr and rt 1-0-2ap, v 0-1-2ap. IV: Fm d 0-1-1-5; Pt pr and rt 0-1-0; Tb d 1-0, pr 1-1-2, rt 1-1-1, v 1-0-2ap; Mt d 1-1, pr and rt 1-1-2ap, v 1-2-2ap. Coloration (in alcohol; Figs 327–329 ). Carapace bright yellow, densely covered with brown recumbent scales, with two wide longitidunal stripes of white scales and wide marginal white stripes of scales; eye field dark brown. Clypeus yellow, sparsely covered with white hairs. Endites, labium and chelicerae bright yellow. Abdomen: dorsum yellow, with two wide brownish interrupted bands; sides and venter bright yellow, with sparse brownish speckles. Book-lung covers and spinnerets bright yellow. All legs yellow, with pale brown patches and tinge. Palps yellow. Spermathecae as in Fig. 323 : epigynal plate flat, triangle-shaped, with rounded widely separated copulatory openings (see Próchniewicz & Hęciak 1994: fig. 8b); the epigynal pocket absent; the insemination ducts V-shaped, running towards the median line; the primary spermathecae bean-shaped.

Distribution

The type locality only ( Fig. 512 ).

Figures

Figs 317–323. Stenaelurillus kronestedti Próchniewicz & Heçiak, 1994, holotype, ♂ (317–322) and paratype ♀ (323). 317. Bulbus, ventral view. 318. Male palp, retrolateral view. 319. Embolic division, dorsal view. 320. Embolic division, retrolateral view. 321. Embolic division, median view. 322. General appearance. 323. Spermathecae, dorsal view. Abbreviations: see Material and methods. Scale bars: 317– 321, 323 = 0.1 mm; 322 = 1 mm.

Figs 324–329. Stenaelurillus kronestedti Próchniewicz & Heçiak, 1994, general appearance. 324– 326. Holotype. 327–329. Paratype, ♀. Scale bars: 1 mm

Figs 40–48. Stenaelurillus albopunctatus Caporiacco, 1949, lectotype, ♂ and paralectotype, ♀. 40. Male palp, ventral view. 41. Male palp, retrolateral view. 42. Embolic division, dorsal view. 43. Embolic division, retrolateral view. 44. Embolic division, median view. 45. ♂, dorsal view. 46. ♂, ventral view. 47. Epigyne, ventral view. 48. Spermathecae, dorsal view. Abbreviations: see Material and methods. Scale bars: 40–44, 47–48 = 0.1 mm; 45–46 = 1 mm.

Fig. 512. Collecting localities of six African species of Stenaelurillus Simon, 1885.