Menemerus nigli

The male was identified in 2012 by Wanda Wesołowska and Mario Freudenschuss, and the female by Pir Asmat Ali, Wayne Maddison.

The spider is medium-sized, typically 4.89 millimetres (0.193 in) in length, with a dark brown carapace and grey-brown abdomen that has a distinctive cream and white pattern created by small hairs.

[4] The genus shares some characteristics, including having narrow, oval, fixed embolus, with the genera Hypaeus and Pellenes.

[5] Genetic analysis has shown that the genus is related to the genera Helvetia and Phintella and is classified in the tribe Chrysillini.

[8] Initially, only the male of the species was identified, with the first description of the female being by Pir Asmat Ali, Wayne Maddison.

[10] The female is distinguished from other Menemerus species by the distinctive folds that extend from the broad forward-facing copulatory duct, as shown in Figure 11.

[12] The juvenile male is generally darker in appearance and can be identified by its club-shaped cymbium at the end of its pedipalp.

In 2020, Rafael M. Mariante and David E. Hill identified examples of the species from three sites in Rio de Janeiro, Brazil.

[17] However, it seems to particularly thrive on the painted and stuccoed walls that can be found in cities like Rio de Janeiro and others across the region.

M. nigli from Cambodia
Views and details of male (5–8) and female (9–15) Menemerus nigli