Downesia sulcataDownesia sulcata is a species of beetle of the family Chrysomelidae. It is found in Thailand and Vietnam.DescriptionAdults reach a length of about 5.5 mm. This species is similar to Downesia tarsata. The adults are reddish-yellow. There are three raised ribs on each elytron, separated from each other by two rows of deeply depressed dots. Furthermore, the posterior third of the elytra is black.Life historyNo host plant has been documented for this species.TaxonomySome sources list the author as Raffaello Gestro, but this is in error.