Menemerus nigli Wesołowska & Freudenschuss, 2012

Pupin, Giovanni B. & Brescovit, Antonio D., 2023, The alien synanthropic Salticidae in Brazil (Araneae), Iheringia, Série Zoologia (e 2023002) 113, pp. 1-16 : 7-8

Menemerus nigli Wesołowska & Freudenschuss, 2012

( Figs 13–18 ; 34)

Menemerus nigli WESOŁOWSKA & FREUDENSCHUSS, 2012: 449 , figs 1-6.

Diagnosis, Menemerus nigli differs from M. bivittatus by presenting a white marginal stripe, however thinner and does not extend to the abdomen ( Figs 13, 14 ). Males have a marked curvature of the embolus in the palp ( Figs 15, 16 ) and females have a pyramid-shaped epigynum, with a shorter anterior atrium, and a short median septum ( Figs 17, 18 ).

Records in the World. Menemerus nigli is a newly described species originally from Pakistan; its distribution extends to India and Thailand ( WORLD SPIDER CATALOG, 2022), and was recently registered in Brazil ( MARIANTE & HILL, 2020) (Fig. 34).

Natural history. In its natural habitat the species is found under rocks ( CHATTERJEE et al., 2017), but in urban areas, it is found inside buildings, external walls, and stucco ( MARIANTE & HILL, 2020).

Material examined. BRAZIL, Rio de Janeiro: Rio de Janeiro, Bairro de Manguinhos , campus of Instituto Oswaldo Cruz (22°52’19.7”S; 43°14’54.2”W), ♂, ♀, ( UFRJ 1634 ) ; ♂, ♀ ( UFRJ 1636 ) ; all collected on II.2020; ♂, ♀ ( IBSP 282916 ) ; ♀, 1 juv. ( IBSP 282916 ) all collected on VII.2021 by R. M. Mariante col.

Figures

Figs 13–18. Menemerus nigli WesoŁowska & Freudenschuss, 2012 (13, 15, 16: ♂; 14, 17, 18: ♀). Figs 13, 14, habitus, dorsal view; 15, palp, ventral view; 16, palp, retrolateral view; 17, epigynum, ventral view; 18, epigynum, dorsal view (CO, copulatory opening; CP, central pocket; E, embolus; RTA, retrolateral tibial apophysis; S, spermatheca; SD, sperm duct; TL, tegular lobe).