Stenaelurillus glaber Wesołowska & Russell-Smith, 2011

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 : 41-47

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.3793749

persistent identifier

https://treatment.plazi.org/id/039487C1-1656-7764-FE1B-2E8A5360FABB

treatment provided by

Valdenar

scientific name

Stenaelurillus glaber Wesołowska & Russell-Smith, 2011
status

 

Stenaelurillus glaber Wesołowska & Russell-Smith, 2011 View in CoL

Figs 156–164 View Figs 156–164 , 511

Stenaelurillus glaber Wesołowska & Russell-Smith, 2011: 593 View in CoL , figs 151–152, 238–240 (D♂); ♂ holotype in BMNH, examined.

Diagnosis

By the conformation of the copulatory organs ( Figs 156–160 View Figs 156–164 ), the males of S. glaber are almost identical to those of S. hirsutus ( Figs 239–242 View Figs 239–245 , 246–251 View Figs 246–251 ), S. pilosus ( Figs 406–410 View Figs 406–412 ) and S. striolatus ( Figs 463– 467 View Figs 463–471 ). Males of all these species can easily be distinguished by the clypeal colour pattern: yellow clypeus with long sparse white hairs in S. glaber ( Fig. 161 View Figs 156–164 ), black with three vertical white stripes in S. hirsutus ( Fig. 255 View Figs 252–257 ), with a transverse dark brown band in S. pilosus ( Fig. 413 View Figs 413–416 ), and entirely dark brown/black in S. striolatus ( Fig. 468 View Figs 463–471 ). The shape of the distal projection (DP) of the functional tegulum also seems to be diagnostic (compare Fig. 156 View Figs 156–164 with Figs 246 View Figs 246–251 , 406 View Figs 406–412 , 463 View Figs 463–471 ). The female of S. glaber has not been described yet and cannot be diagnosed now.

Material examined

Holotype

NIGERIA: ♂, Kwara State, Mokwa , 9°17′34.1″ N, 5°03′16.8″ E, cultivated savanna, in dead leaves, 13 Jul. 1974, A. Russell-Smith leg. ( BMNH). GoogleMaps

Paratype

NIGERIA: 1 ♂, same collecting data as for holotype ( BMNH).

Description

Male (holotype)

Measurements: carapace: 2.55 long, 1.75 wide, 1.30 high. Abdomen: 2.05 long, 1.40 wide. Ocular area: 1.18 long, 1.60 wide anteriorly, 1.56 wide posteriorly. Cheliceral length 0.50. Clypeal height 0.20. Diameter of AME 0.50. Length of leg segments: I 1.28 + 0.70 + 0.75 + 0.60 + 0.53 (3.86); II 1.30 + 0.63 + 0.75 + 0.58 + 0.50 (3.76); III 1.95 + 0.90 + 1.25 + 1.40 + 0.58 (4.08); IV 1.68 + 0.70 + 1.13 + 1.38 + 0.60 (5.49). Leg formula IV,III,I,II. Leg spination: I: Fm d 0-1-1-5; Pt pr 0-1-0; Tb pr 1-1, v 1-2- 2ap; Mt pr and rt 1ap, v 2-2ap. II: Fm d 0-1-2-5; Pt pr 0-1-0; Tb pr 1-1-1, rt 0-1-1, v 1-1-2ap; Mt pr and rt 1-1ap, v 2-2ap. III: Fm d 0-1-2-4; Pt pr and rt 0-1-0; Tb d 1-0-0, pr 1-1-1-1, rt 1-1-1, v 1-0-2ap; Mt d 1-0-0, pr and rt 1-0-2ap, v 0-2-2ap. IV: Fm d 0-1-1-4; Pt pr and rt 0-1-0; Tb d 1-0-0, pr and rt 1-1-1, v 1-0-2ap; Mt d 1-0-0, pr and rt 1-1-2ap, v 0-2-2ap. Coloration (in alcohol; Figs 161–164 View Figs 156–164 ). Carapace yellowish brown, densely covered with recumbent brown scales, with two pairs (dorsal and marginal) of wide longitudinal white stripes of recumbent scales. Eye field dark brown, with numerous short protruding brown bristles. Clypeus brownish yellow, sparsely covered with long white hairs. Eyes of the first row are ventrally edged by dense white hairs and scales. Sternum, labium, endites and chelicerae yellow. Abdomen: dorsum dark brown, with three large white spots on its rear half; sides and venter greyish yellow. Book-lung covers yellow. Spinnerets brown. Legs yellow, but all Fm dorso-distally with patches of brown recumbent scales. Palps entirely yellow. Palpal structure as in Figs 156–160 View Figs 156–164 : VTA bulge-shaped, poorly marked; RTA straight, stiletto-shaped, directed anteriad, with a wide base; the cymbial lateral process (CLP) absent; the tegulum small, with a short, cone-shaped tegular process (TP); the functional tegulum swollen, with well-developed proximal (PP) and distal (DP) projections; the embolus short, ribbon-shaped, with a wide round base.

Female

Unknown.

Distribution

The type locality only ( Fig. 511 View Fig ).

Stenaelurillus guttatus ( Wesołowska & Cumming, 2002) comb. nov. Figs 8–9 View Figs 1–13 , 16–17 View Figs 14–29 , 165–183 View Figs 165–172 View Figs 173–179 View Figs 180–183 , 511

Mashonarus guttatus Wesołowska & Cumming, 2002: 167 View in CoL , figs 1–19 (D♂ ♀); ♂ holotype in MRAC, examined.

Diagnosis

By the conformation of the copulatory organs (the well-marked proximal projection of the functional tegulum, the stiletto-shaped embolus and the developed cymbial lateral projection, etc.), S. guttatus comb. nov. is most similar to S. brandbergensis comb. nov. and S. pseudoguttatus sp. nov. (cf. Figs 90– 94 View Figs 90–98 , 99–100 View Figs 99–104 , and 416–420). The males of S. guttatus comb. nov. differ in having a pointed distal projection (wide and obtuse in S. brandbergensis comb. nov., absent in S. pseudoguttatus sp. nov.) and the shortest RTA (as compared with the two related species). The females differ in having comparatively long insemination ducts (very short in S. brandbergensis comb. nov., not yet known in S. pseudoguttatus sp. nov., cf. Figs 172 View Figs 165–172 and 100).

Material examined

Holotype

ZIMBABWE: ♂, Harare, 17°15′ S, 31°02′ E, garden, Jun. 1992, M.S. Cumming leg. ( MRAC HT.211.425). GoogleMaps

Paratype

ZIMBABWE: 1 ♀, together with the holotype ( MRAC PT.211.426).

Other material

BOTSWANA: 1 ♀, North East Distr., nr Francistown, Selkirk Mine, 21°19′ S, 27°43′ E, pitfall traps, 6 Jun.–22 Jul. 2008, D.H. Jacobs leg. ( NCA 2016/1741); 1 ♂, same locality, pitfall traps, 30 Oct.–6 Nov. 2007, D.H. Jacobs leg. ( NCA 2016/1742); 8 ♂♂, 6 ♀♀, same locality, pitfall traps, 1–28 Mar. 2008, D.H. Jacobs leg. ( NCA 2009/3736, NCA 2016/1743).

ZAMBIA: 1 ♂, 3 ♀♀, Livingstone airport, 17°49′ S, 25°49′ E, leaf litter, 1 Dec. 2006, C.R. Haddad, J. Parau and F. Jordaan leg. ( NCA 2007/884); 7 ♂♂, 2 ♀♀, Namwala Kafue NP, 15°46′ S, 26°00′ E, leaf litter, 7 Dec. 2006, C.R. Haddad and J. Parau leg. ( NCA 2007/573).

Remarks

The original type series of Mashonarus guttatus turned out to include two species. The male paratype from Namibia (MRAC 152.151) actually belongs to a separate and new species that is described below as S. pseudoguttatus sp. nov.

Description

Male (holotype)

Measurements: carapace: 2.70 long, 2.00 wide, 1.15 high. Abdomen: 2.50 long, 1.90 wide. Ocular area: 1.15 long, 1.48 wide anteriorly, 1.35 wide posteriorly. Cheliceral length 0.98. Clypeal height 0.15. Diameter of AME 0.43. Length of leg segments: I 1.70 + 0.93 + 1.35 + 1.10 + 0.55 (5.63); II 1.45 + 0.78 + 0.88 + 0.78 + 0.48 (4.37); III 1.80 + 0.98 + 0.80 + 1.25 + 0.53 (5.36); IV 1.55 + 0.78 + 1.18 + 1.43 + 0.58 (5.52). Leg formula I,IV,III,II. Leg spination: I: Fm d 0-1-1-5; Tb pr 2-1, v 1-1-2ap; Mt pr 1ap, v 2-2ap. II: Fm d 0-1-1-5; Tb pr 1-1, v 1-1-2ap; Mt pr 1-1ap, v 2-2ap. III: Fm d 0-1-1-5; Pt pr 0-1 0; Tb pr 1-1, rt 1-1-1, v 1-0-2ap; Mt d 1-1, pr and rt 0-2-2ap, v 0-2-2ap. IV: Fm d 0-1-1-3; Pt pr 0-1-0; Tb pr and rt 1-1-1, v 1-0-2ap; Mt d 1-1-0, pr, rt and v 1-1-2ap. Coloration (in alcohol; Figs 173–179 View Figs 173–179 ). Carapace yellowish brown, with dark brown eye field, densely covered with long, recumbent brown scales; clypeus yellowish brown, sparsely covered with brown hairs. Sternum yellowish brown, densely covered with white hairs. Endites and labium yellowish brown. Chelicerae light brown. Abdomen: dorsum dark brown, with three pairs of white spots and white anal tubercle ( Fig. 175 View Figs 173–179 ); sides and venter greyish yellow. Book-lung covers grayish yellow. Spinnerets brownish. All legs: coxae and trochanters yellow, Fm, Pt and Tb brownish, Mt and Tr yellowish brown. Palps brownish. Palpal structure as in Figs 165–170 View Figs 165–172 ; VTA bulge-shaped; RTA straight, stiletto-shape, directed anteriad; the cymbium with a well-developed cymbial lateral process; the tegulum small, poorly marked, without a visible tegular process; the functional tegulum narrow-elongated, with well-developed, wide and obtuse proximal projection (PP) and with a long, cone-shaped distal projection (DP); the embolus long, small swordshaped, with a wide round base.

Female (paratype)

Measurements: carapace: 2.65 long, 1.95 wide, 1.05 high. Abdomen: 3.20 long, 2.63 wide. Ocular area: 1.05 long, 1.38 wide anteriorly, 1.35 wide posteriorly. Cheliceral length 0.68. Clypeal height 0.15. Diameter of AME 0.43. Length of leg segments: I 1.30 + 0.75 + 0.83 + 0.73 + 0.48 (4.09); II 1.30 + 0.75 + 0.75 + 0.70 + 0.40 (3.90); III 1.70 + 0.95 + 1.05 + 1.18 + 0.55 (5.43); IV 1.70 + 0.83 + 1.10 + 1.48 + 0.63 (5.74). Leg formula IV, III,I,II. Leg spination: I: Fm d 0-1-1-4; Tb pr 1-2, v 1-1-2ap; Mt pr 1ap, v 2-2ap. II: Fm d 0-1-2-4; Tb pr 1-1, v 1-1-2ap; Mt pr 1-1ap, v 2-2ap. III: Fm d 0-1-2-4; Pt pr and rt 0-1-0; Tb d 1-0, pr and rt 1-1-1, v 1-2ap; Mt d 1-1-0, pr and rt 1-2ap, v 2-2ap. IV: Fm d 0-1-1-3; Pt pr and rt 0-1-0; Tb d 1-0, pr and rt 1-1-1, v 1-2ap; Mt d 1-1-0, pr and rt 1-1-2ap, v 2-0-2ap. Coloration (in alcohol; Figs 180–183 View Figs 180–183 ). Carapace yellowish brown, with dark brown eye field, densely covered with long recumbent brown scales; there are two longitudinal white stripes of scales and white marginal bands of scales; clypeus and cheeks yellowish brown, sparsely covered with brown hairs. Sternum yellow, tinged with brown and densely covered with white hairs. Endites and labium yellow, tinged with brown. Chelicerae yellow, tinged with brown. Abdomen: dorsum dark brown, with three pairs of white spots and wide white lateral stripes; sides and venter yellow. Book-lung covers yellow. Spinnerets yellow, tinged with grey. All legs: coxae and trochanters yellow, the remaining segments yellowish brown. Palps yellowish brown. Epigyne and spermathecae as in Figs 171–172 View Figs 165–172 ; the epigynal plate flat, with no visible structures; the copulatory openings small, round and widely separated; the insemination ducts short, as S-shaped tubes directed towards each other; the primary spermathecae bean-shaped.

Distribution

Botswana, Zambia, Zimbabwe ( Fig. 511 View Fig ) ( Wesołowska & Cumming 2002: sub Mashonarus g.; present data). New to Botswana and Zambia.

MRAC

Musée Royal de l’Afrique Centrale

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Stenaelurillus

Loc

Stenaelurillus glaber Wesołowska & Russell-Smith, 2011

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

Stenaelurillus glaber Wesołowska & Russell-Smith, 2011: 593

Wesolowska W. & Russell-Smith A. 2011: 593
2011
Loc

Mashonarus guttatus Wesołowska & Cumming, 2002: 167

Wesolowska W. & Cumming M. S. 2002: 167
2002
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