Theriophonum infaustum N.E.Br. (Araceae), an endemic species of SW India, consists of small tuberous plants. The species was found to have protogynous inflorescences and to be visited by several kinds of beetles. Beetles belonging to the species Anotylus rubidus Cameron (Coleoptera, Staphylinidae) are found to be the main potential pollinators. Other species observed were only casual visitors. A detailed account on the process of cantharophily in this species is given with explanatory illustrations.