Plexippus lutescens

Plexippus lutescens is a medium-sized spider, with a cephalothorax that measures typically 3.3 mm (0.13 in) in length and 2.4 mm (0.094 in) in width, while the abdomen is typically 4 mm (0.16 in) long and 2.1 mm (0.083 in) wide. The carapace is a dark brown oval with a large white stripe that runs down the back from the eye field all the way to the back. There are two other white stripes on the edges. It has a covering of dense brown hairs. The chelicerae are a lighter brown and unidentate. The labium is brown with yellow tips. The abdomen is ovoid and has a more red-brown tinge and lighter stripe, surrounded by narrow lines. It is also covered with hairs, but these are generally colourless, although some examples have orange hairs on the stripes. The underside is orange, with a large triangular area in the middle that has three lines that cut across the design. The spinnerets are brown. The spider has hairy legs and pedipalps that have a short tibial apophysis, or appendage. The palpal bulb is very light, almost yellow, and lacks the lateral lobe seen on other species in the genus. The embolus is small and thin.^[10] Only the male has been described.^[1]

The male holotype was identified near Bindura in Zimbabwe. A paratype was found in the Otjozondjupa Region of Namibia in 2009. Examples include both fully-grown adults and younger, less well-developed spiders.^[5]