Zygaena laeta, the bloodword burnet, is a moth of the family Zygaenidae. It is found in Central and South-Eastern Europe. The wingspan is 26–34 mm. The moth flies from July to August depending on the location. The larva mainly feed on Eryngium campestre. Order: Lepidoptera, Family: Zygaenidae, Genus: Zygaena, Species: Zygaena laeta (Hübner, 1790), Synonyms: Sphinx laeta Hübner, 1790.