The species inhabits the Nama Karoo and Forestbiomes, where it constructs retreat-webs that are usually made underneath rocks.
Description
Only females of Penestomus prendinii are known to science. The carapace is brown with somewhat roundedlateral margins, covered by fine black setae with broad white setae concentratedposterior to the fovea. The sternum is duskypale yellow. The chelicerae are brown with five promarginal teeth and two retromarginal teeth, bearing fine black setae only. The legs are dusky brown basally, with anterior legs orange distally and posterior legs yellow distally. The opisthosoma is dark gray dorsally with a pair of broad lightdorsolateral patches, covered with a mixture of fine black and broad white setae.