Naming
It is one of several monotypic genera from Southeast Asia where, despite their first description dating back more than a hundred years, there are no habitat details, although genital and sometimes other drawings are now available for several of them. "Anarrhotus" is only known from a single male specimen, the pedipalp of which was drawn by Proszynski. The original describer Eugène Simon put the genus close to "Pancorius". The male is 6 mm long."Plexippoides nishitakensis" was originally put in this genus, but transferred by Proszynski in 1984.
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