Zygaena loti, the slender Scotch burnet, is a moth of the Zygaenidae family. It is found in most of Europe, except Ireland, the Netherlands, Portugal, Fennoscandia, Denmark, Estonia and Latvia. The wingspan is 25–35 mm. Adults are on wing in June and July. The larvae feed on Lotus corniculatus, Hippocrepis comosa and Securigera species.