Neaetha maxima

Only the female has been described. The spider is large, more than three times larger than other species in the genus like Neaetha catula, with a length over 10 mm (0.39 in). Its cephalothorax is 4.8 mm (0.19 in) long and 3.9 mm (0.15 in) wide, while its abdomen is 5.6 mm (0.22 in) long and 3.5 mm (0.14 in) wide. It has a light brown rhomboid carapace with a high cephalon, with half taken up with a darker eye field. Scattered white hairs line the edge of the carapace. The ovoid abdomen is narrower and lighter, yellow-white in colour with a faint grey chevron pattern visible. The clypeus and chelicerae are brown. The spinnerets are grey and the legs are orange-brown. The epigyne has a distinctive central pocket and wide copulatory ducts.

Neaetha irreperta lives in Ivory Coast and Nigeria. The holotype for the species was found on a river bank near Ibadan in Nigeria in 2011, based on a specimen found in 1974. The species distribution was extended to include Ivory Coast in 2022, based on examples found near the Bandama River in 1975.