Brancus muticus Simon, 1902
publication ID |
https://doi.org/ 10.11646/zootaxa.3686.2.3 |
publication LSID |
lsid:zoobank.org:pub:3166E584-2758-491D-BB60-A3921271E08C |
DOI |
https://doi.org/10.5281/zenodo.6149297 |
persistent identifier |
https://treatment.plazi.org/id/6958143B-FFB5-A534-90E0-FC5DDD97F8C1 |
treatment provided by |
Plazi |
scientific name |
Brancus muticus Simon, 1902 |
status |
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Brancus muticus Simon, 1902 View in CoL
Figs 1 View FIGURE 1 , 18–35 View FIGURES 18 – 23 View FIGURES 24 – 28 View FIGURES 29 – 35
Brancus muticus Simon, 1902: 400 View in CoL (3, examined).
B. muticus: Simon 1903: 709 View in CoL ; Berland & Millot 1941: 332; Prószyński 1976: 156; 1978: 7 (3); Wesołowska & Russell-Smith 2011: 567 (syn.).
Brancus bevisi Lessert, 1925: 356 View in CoL , fig. 17 (3, examined).
B. bevisi: Berland & Millot 1941: 331 View in CoL ; Prószyński 1976: 156.
Type material: Holotype Brancus muticus 3 ( MNHN, #7546) Congo [date and collector unknown]; Holotype Brancus bevisi 3 ( NMSA, #NM 17060) Amanzimtoti, L. Bevis [= Republic of South Africa, KwaZulu-Natal, Amanzimtoti, 30°03'S, 30°53'E, date unknown (L. Bevis)].
Other material: RSA: 1Ƥ (NCA 97/120) KwaZulu-Natal, Richards Bay, ca. 28°49'S, 32°02'E, sweep net, 11– 12.1995 (T. Wassernaar); 1Ƥ (probably lost) Limpopo, 23°30'S, 30°15'E, 374 m a.s.l., branch beating, vegetation: Colophosperme mopane and Androstachys johnsoni , woodland, 16.02.2008 (V. Gelebe); 13 2Ƥ (probably lost) exact locality and date unknown (A. Russell-Smith).
Diagnosis. This species resembles B. verdieri Berland & Millot, 1941 . The two species differ in the shape of the tibial apophysis (straight in B. muticus and bent at a right angle in B. verdieri ) and position of tegular lobe (prolateral in B. verdieri and basal ( Figs 18–20 View FIGURES 18 – 23 ) in B. muticus ). The embolus is coiled forming one loop and contrasts with other Brancus species where the coil has two loops the ( B. blaisei ) and half a loop ( B. occidentalis ).
Description. Male (holotype of B. bevisi ,). Carapace: 2.59 long, 2.32 wide, 1.40 high. Abdomen: 2.88 long, 1.58 wide. Eye field: 1.18 long, anterior 1.65 wide, posterior 1.65 wide. Cheliceral length 0.86. Clypeal height 0.10. Diameter of AME 0.57. Length of leg segments: I 1.40+0.97+1.36+0.68+0.57; II 1.18+0.79+1.00+0.57+0.50; III 1.18+0.72+0.90+1.00+0.57; IV 1.54+0.68+1.00+1.11+0.60. Leg spination: I: Fm d 0-1-1-3; Tb v 1 -0-0-2-1-0; Mt v 0-2-2ap. II: Fm d 0-1-2-4; Pt pr 1; Tb pr 0-1-1, v 1 -0-2-2ap; Mt v 0-2-2ap. III: Fm d 0-2-1-4; Pt pt and rt 1; Tb pr 1-1, rt 1-1-1, v 1 -0-1ap; Mt pr and rt 1-0-2, v 1 -0-2ap. IV: Fm d 0-1-1-3; Pt pr and rt 1; Tb pr 0-1-1 or 0-2-1, rt 1-1-1, v 1 -0-2ap; Mt pr and rt 0-1-2ap; v 0-0-2ap. Carapace yellow-brown to brown, ocular area is yellow with brown rings around eyes, central part of ocular area with brown patch ( Figs 29–30 View FIGURES 29 – 35 ). Laterally ocular area with bunch of long dense bristles. Clypeus very low, yellow with brown line among lower rim, covered with one row of brown bristles ( Fig. 32 View FIGURES 29 – 35 ). Chelicerae brown. Sternum yellow. Abdomen yellow, dorsum yellowish-brown, medially with band of white scales, covered with brownish-yellow hairs. First pair of legs robust, bigger than others. Femora of all legs brown, distally yellow. Coxae I brownish, coxae of the remaining legs yellow. Patellae and tibiae I–II ventrally with rather dense brown hairs. Palpal structure as in Figs 18–23 View FIGURES 18 – 23 .
Female (KwaZulu-Natal, NCA 97/120). Carapace: 2.40 long, 2.10 wide, 1.45 high. Abdomen: 4.50 long, 2.50 wide. Eye field: 1.10 long, anterior 1.60 wide, posterior 1.65 wide. Cheliceral length 0.80. Clypeal height 0.10. Diameter of AME 0.55. Length of leg segments: I 1.40+0.95+1.05+0.60+0.50; II 1.25+0.90+0.90+0.55+0.50; III 1.60+1.00+0.90+0.90+0.50; IV 1.55+0.90+1.10+1.20+0.50. Leg spination: I: Fm d 0-1-1-3; Tb v 0-0-0-1-1; Mt v 0-2-2ap. II: Fm d 0-1-1-4; Tb v 0-0-1-0-0 or 0-0-0-0-0; Mt v 0-2-2ap. III: Fm d 0-2-1-4; Pt pr and rt 1; Tb pr 1-1, rt 1-1-1, v 1 -0-2ap; Mt pr and rt 1-0-2, v 1 -0-2ap. IV: Fm d 0-1-1-2; Pt rt 1; Tb pr 1-1 or 0-1, rt 1-1-1, v 0-0-2ap; Mt pr 0-1-2 or 0-0-2, rt 1-1-2; v 0-0-2ap. Carapace brownish-yellow with brown rings around eyes, central part of ocular area with brown patch ( Fig. 34 View FIGURES 29 – 35 ). Laterally ocular area with bunch of long dense bristles. Clypeus and cheeks yellow covered with white hairs ( Fig. 33 View FIGURES 29 – 35 ). Chelicerae brownish-yellow. Sternum yellow. Abdomen pale yellow, dorsum with two parallel brown bands, laterally and apically with wide bands of brown patches and strokes ( Fig. 34 View FIGURES 29 – 35 ). Spinnerets brown-yellow. Book-lungs pale yellow. Legs I robust, larger than others. All legs yellow. Femora I prolaterally with brown transversal lines. Palps yellow. Structure of epigyne and spermathecae as in Figs 24–25, 27–28 View FIGURES 24 – 28 .
Distribution. Western, Central and Southern Africa.
Comments. In 2008 one of us (GA) studied 1 Ƥ collected by V. Gelebe and 13 2Ƥ collected by A. Russell- Smith in the Republic of South Africa. Unfortunately this material seems to be lost. GA kept figures of the specimens collected by A. Russell-Smith as it represents the first record of males and females of Brancus muticus that were collected together.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Brancus muticus Simon, 1902
Azarkina, Galina N. & Foord, Stefan H. 2013 |
B. bevisi:
Proszynski 1976: 156 |
Berland 1941: 331 |
Brancus bevisi
Lessert 1925: 356 |
B. muticus:
Wesolowska 2011: 567 |
Proszynski 1976: 156 |
Berland 1941: 332 |
Simon 1903: 709 |