Microbianor globosus

The spider is very small and stout. The male has a carapace that measures typically 1.1 mm (0.04 in) in length and 1.0 mm (0.04 in) in width. It is high, broad and short, dark brown and covered in dark hairs apart from white hairs on the front edges. The eye field is darker, covered in long bristles with a scattering of white scales near the eyes themselves. The mouthparts consist of light brown chelicerae that are unidentate and maxilae that are straight with a small bump on the very edges. The underside of the carapace, the sternum, is dark. The oval abdomen is typically 1.2 mm (0.05 in) long and 0.9 mm (0.04 in) wide. It is slightly flattened with a large scutum. The topside is brown with a pattern consisting of a thin line down most of the middle and six patches on the sides arranged in pairs, the rearmost ones the largest, made of white hairs. The underside is dark. The spinnerets are brown. The front legs are brown. They have a slightly swollen tibia. The remaining legs are smaller than the front pair and yellow. They have a single spine on them. The pedipalps are brown. They have a short tibia with a very large curved spike or apophysis. The palpal bulb is rounded with an extension on the tegulum. The embolus is long, stretching round the palpal bulb, with a curved thin tip. …

The first Microbianor species were found in Seychelles and the other islands of the Indian Ocean. Microbianor globosus is the first to be discovered in continental Africa. It is endemic to South Africa. The holotype was discovered near Prieska in Northern Cape in 2009. It lives on grass tussocks on the banks of the Orange River.