Haplodrassus sesquidentatusHaplodrassus sesquidentatus is a species of spider in the family Gnaphosidae. It is endemic to South Africa.DistributionHaplodrassus sesquidentatus is found in the Northern Cape province of South Africa.Habitat and ecologyThe species is a free-living ground dweller that inhabits the Nama Karoo, Savanna, and Succulent Karoo biomes at altitudes ranging from 209 to 870 m above sea level. It has also been collected from pistachio orchards.DescriptionHaplodrassus sesquidentatus is known from both sexes.ConservationHaplodrassus sesquidentatus is listed as Least Concern by the South African National Biodiversity Institute due to its wide distribution.TaxonomyThe species was originally described by W. F. Purcell in 1908 as Drassodes sesquidentatus from Kamaggas. In 2025, Yuri M. Marusik and Charles R. Haddad transferred the species to the genus Haplodrassus.