Menemerus lesserti Lawrence, 1927

Haddad, Charles Richard & Wesołowska, Wanda, 2024, On some new and poorly-known Chrysillini from arid western South Africa (Araneae, Salticidae), African Invertebrates 65 (2), pp. 127-159 : 127-159

publication ID

https://doi.org/ 10.3897/AfrInvertebr.65.136083

publication LSID

lsid:zoobank.org:pub:CC028E33-8418-4345-950E-72E977FEE66C

DOI

https://doi.org/10.5281/zenodo.14187597

persistent identifier

https://treatment.plazi.org/id/D544BFE4-1B1D-54FD-B86A-7AC995F7CD44

treatment provided by

African Invertebrates by Pensoft

scientific name

Menemerus lesserti Lawrence, 1927
status

 

Menemerus lesserti Lawrence, 1927 View in CoL

Figs 17 A, B, D, E View Figure 17 , 18 View Figure 18 , 19 View Figure 19

Menemerus lesserti Lawrence, 1927: 60, pl. 2, fig. 45; Wesołowska 1999: 302, figs 171–176. View in CoL

Material examined.

South Africa • Northern Cape Province; 1 ♂; Richtersveld National Park, near Hand of God ; 28 ° 05.874 ' S, 16 ° 58.736 ' E; 35 m a. s. l.; 6 Jan 2021; C. Haddad et al. leg.; hand collecting, under rocks; NCA 2021 / 64 GoogleMaps 2 ♀; Richtersveld National Park, Research Accommodation ; 28 ° 07.122 ' S, 16 ° 53.480 ' E; 9 Jul 2021; C. Haddad & R. Booysen leg.; on rocky outcrop, hand collection; NCA 2021 / 190 GoogleMaps 1 ♀; same collection data as for preceding; NCA 2021 / 168 GoogleMaps 1 ♀; same collection data as for preceding; NMBA 19844 View Materials GoogleMaps 1 ♂; same collection data as for preceding; NMBA 19845 View Materials GoogleMaps .

Diagnosis of male.

The palpal organ of this species is similar to that of Menemerus meridionalis Wesołowska, 1999 , as both share a similar shape of the tibia, but it can be distinguished by a more robust ventral apophysis, clearly longer embolus and the shape of retrolateral apophysis, which is triangular in M. lesserti while rounded in M. meridionalis (cf. Fig. 19 A, B View Figure 19 with fig. 188 in Wesołowska 1999).

Description.

See Wesołowska (1999) for description of female. Live habitus of female in Fig. 17 A, D View Figure 17 , of female in alcohol in Fig. 18 F View Figure 18 , epigyne in Fig. 18 G, H View Figure 18 .

Male: Measurements: Cephalothorax length 2.1, width 1.6, height 0.6. Abdomen length 2.0, width 1.5. Eye field length 0.9, anterior and posterior width 1.3. General appearance of live male as in Fig. 17 B, E View Figure 17 , of male in alcohol in Fig. 18 A, B View Figure 18 , body flattened. Carapace brown, with black eye field. Dense whitish hairs on eye field, amongst them long brown bristles. White hairs form broad streak along lateral margins of carapace (Fig. 18 A, B View Figure 18 ). Clypeus low, with white hairs. Mouthparts dark brown, endites with whitish tips. Sternum yellow. Abdomen oval, light, greyish, with broad median whitish-yellow serrated streak and light patches laterally. White and brown hairs on abdomen. Venter light, spinnerets grey. Legs yellow, with brownish marks formed by brown hairs. Other leg hairs white, spines brown. Palps brown, femur clothed in white hairs. Tibia with large lobate retrolateral apophysis and spiked ventral apophysis (Figs 18 D, E View Figure 18 , 19 B – D View Figure 19 ). Embolus straight, accompanied by membranous functional conductor (Figs 18 C View Figure 18 , 19 A View Figure 19 ).

Distribution.

A species known from Namibia, Zimbabwe and South Africa (Limpopo and Northern Cape) ( Wesołowska 1999; Dippenaar-Schoeman et al. 2023).

Remarks.

The male of this species is described here for the first time. It was matched to the female of M. lesserti , based on DNA barcodes of the specimens sequenced (Fig. 2 View Figure 2 ).

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Menemerus

Loc

Menemerus lesserti Lawrence, 1927

Haddad, Charles Richard & Wesołowska, Wanda 2024
2024
Loc

Menemerus lesserti

Wesołowska W 1999: 302
Lawrence R 1927: 60
1927