Diseases of the honey bee From Wikipedia Pests and parasites § Varroa mites Varroa mite on a honey bee larva Main article: Varroa destructor Varroa destructor and Varroa jacobsoni are parasitic mites that feed off the bodily fluids of adult, pupal and larval bees. Varroa mites can be seen with the naked eye as a small red or brown spot on the bee's thorax. Varroa are carriers for a virus that ..