Langelurillus alius, Haddad & Wiśniewski & Wesołowska, 2024

Haddad, Charles Richard, Wiśniewski, Konrad & Wesołowska, Wanda, 2024, The jumping spiders of Mozambique (Araneae: Salticidae), Zootaxa 5560 (1), pp. 1-92 : 35-36

Langelurillus alius sp. nov.

Fig. 23

Diagnosis. This species is similar to Langelurillus minutus Wesołowska & Cumming, 2011 and L. pusillus sp. nov. It differs from them by the structure of the tibial apophyses: the ventral branch of this apophysis is thinner than dorsal one, whereas it is vice versa in the other two species (compare Fig. 23C with Fig. 28C, D ). Female unknown.

Etymology. The name of this species is the Latin meaning “different” and indicates the distinctiveness of this species from congeners.

Type material. Holotype: ♂, MOZAMBIQUE: Tete: no further details ( SMF 10372 ).

Description. Male: Measurements. Cephalothorax length 2.5, width 2.1, height 1.0.Abdomen length 1.9, width 1.6. Eye field length 1.0, anterior and posterior width 1.6. General appearance as in Fig. 23A . Carapace oval, brown, darkening posteriorly. Eye field black, with long brown bristles anteriorly, some transparent hairs on thoracic part, anterior eyes encircled by fawn scales. Clypeus yellow. Chelicerae toothless, light brown. Mouthparts and sternum yellow. Abdomen greyish, with lighter area near half its length and traces of transverse light lines posteriorly. Abdominal dorsum covered with brown hairs, longer and denser at its anterior border. Venter yellow. Spinnerets yellowish. Legs short, yellow, only tibiae brown. Leg hairs and spines brown. Palps yellow, cymbium and tibia clothed in white hairs dorsally, mixed with brown ones. Palpal organ as in Fig. 23B–E , bulb very convex, with two tibial retrolateral apophyses, ventral one shorter and thinner.

Distribution. Only known from the type locality.

Remarks. This species, only known from the male, may possibly represent the unknown male of Langelurillus ignorabilis Wesołowska & Cumming, 2008 , but they have not been collected together and each species is only known from isolated localities. Therefore, we feel it safest to consider them as separate species until their unknown sexes are discovered.

Figures

FIGURE 23. Langelurillus alius sp. nov., male, holotype. A. General appearance, dorsal view; B. Palpal organ, ventral view; C–E. Same, lateral view.

FIGURE 28. Langelurillus pusillus sp. nov., male, holotype.A. General appearance, dorsal view; B. Palpal organ, ventral view; C, D. Same, lateral view; E. Tibial apophysis, ventrolateral view.