Menemerus foordi Haddad & Wesołowska, 2024, sp. nov.

Menemerus foordi sp. nov. Figs 12 C, F, 15, 16 Material examined. Holotype: South Africa • ♂; Northern Cape Province; Richtersveld National Park, Kokerboomkloof; 28 ° 18.434 ' S, 17 ° 17.476 ' E; 15 Sep 1994; A. Leroy leg.; on grass; NCA 2007 / 2503. Other material. South Africa • Northern Cape Province; 1 subadult ♂; Richtersveld National Park, Akkedis Pass; 28 ° 10.577 ' S, 17 ° 02.069 ' E; 645 m a. s. l.; 9 Jul 2021; C. Haddad et al. leg.; under rocks, west-facing slope; NMBA 19095. Diagnosis. The palpal organ of this species is similar to that of Menemerus lesnei Lessert, 1936 but differs by the presence of a ventral apophysis (absent in M. lesnei), narrower retrolateral apophysis and the shape of the embolus (with small membranous conductor in M. foordi sp. nov., while with a distal lamella in M. lesnei). Compare Fig. 16 A with fig. 162 in Wesołowska (1999). Description. Male: Measurements: Cephalothorax length 2.8, width 2.2, height 1.0. Abdomen length 2.8, width 1.7. Eye field length 1.2, anterior width 1.6, posterior width 1.8. General appearance of live subadult male as in Fig. 12 C, F, of adult male in alcohol as in Fig. 15 A. Carapace dark brown, eye field black, with wide streaks composed of white hairs along lateral margins. Clypeus with white hairs. Mouthparts dark brown, only tips of endites pale. Sternum dark brown. Abdomen black, with broad white streaks laterally, venter dark brown, spinnerets black. Legs brown, hairy. Palps dark brown, femur and tibia clothed in white hairs. Palpal tibia with two long apophyses; retrolateral blunt and ventral sharpened (Figs 15 B, C, 16 A, B). Bulb oval, tegular furrow wide, embolus short, with small membranous functional conductor (Figs 15 B, 16 A). Female: Unknown. Etymology. The new species is a patronym in honour of the late Stefan Hendrik Foord, in recognition of his distinguished career and contributions to the development of arachnology in Africa. Distribution. Only known from the type locality.

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2024-11-19
DOI
https://doi.org/10.5281/zenodo.14187593
Primary Topic
Genomics and Phylogenetic Studies
Type
article
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article

Menemerus foordi Haddad & Wesołowska, 2024, sp. nov.

Zenodo (CERN European Organization for Nuclear Research)
Genomics and Phylogenetic Studies
article

Menemerus foordi Haddad & Wesołowska, 2024, sp. nov.

article en

Abstract

Menemerus foordi sp. nov. Figs 12 C, F, 15, 16 Material examined. Holotype: South Africa • ♂; Northern Cape Province; Richtersveld National Park, Kokerboomkloof; 28 ° 18.434 ' S, 17 ° 17.476 ' E; 15 Sep 1994; A. Leroy leg.; on grass; NCA 2007 / 2503. Other material. South Africa • Northern Cape Province; 1 subadult ♂; Richtersveld National Park, Akkedis Pass; 28 ° 10.577 ' S, 17 ° 02.069 ' E; 645 m a. s. l.; 9 Jul 2021; C. Haddad et al. leg.; under rocks, west-facing slope; NMBA 19095. Diagnosis. The palpal organ of this species is similar to that of Menemerus lesnei Lessert, 1936 but differs by the presence of a ventral apophysis (absent in M. lesnei), narrower retrolateral apophysis and the shape of the embolus (with small membranous conductor in M. foordi sp. nov., while with a distal lamella in M. lesnei). Compare Fig. 16 A with fig. 162 in Wesołowska (1999). Description. Male: Measurements: Cephalothorax length 2.8, width 2.2, height 1.0. Abdomen length 2.8, width 1.7. Eye field length 1.2, anterior width 1.6, posterior width 1.8. General appearance of live subadult male as in Fig. 12 C, F, of adult male in alcohol as in Fig. 15 A. Carapace dark brown, eye field black, with wide streaks composed of white hairs along lateral margins. Clypeus with white hairs. Mouthparts dark brown, only tips of endites pale. Sternum dark brown. Abdomen black, with broad white streaks laterally, venter dark brown, spinnerets black. Legs brown, hairy. Palps dark brown, femur and tibia clothed in white hairs. Palpal tibia with two long apophyses; retrolateral blunt and ventral sharpened (Figs 15 B, C, 16 A, B). Bulb oval, tegular furrow wide, embolus short, with small membranous functional conductor (Figs 15 B, 16 A). Female: Unknown. Etymology. The new species is a patronym in honour of the late Stefan Hendrik Foord, in recognition of his distinguished career and contributions to the development of arachnology in Africa. Distribution. Only known from the type locality.

Zenodo (CERN European Organization for Nuclear Research)
University of the Free State (ZA), Evolutionary Genomics (United States) (US)
Openalex Percentile: Top 58%
Genomics and Phylogenetic Studies
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Menemerus foordi Haddad & Wesołowska, 2024, sp. nov. · Zenodo (CERN European Organization for Nuclear Research) (2024) | TGRS Research Map | TGRS