Xerophaeus rostratus is listed as Least Concern by the South [African National Biodiversity Institute]. The species appears to be sufficiently widespread despite being known only from a few specimens. More sampling is needed to determine the species' range, but there are no significant threats.
Taxonomy
The species was originally described by W. F. Purcell in 1907 from Graaff-Reinet. The species has not been revised but is known from both sexes.