Eulithis testata, the chevron, is a moth of the Geometridae family. It is found in both the Palearctic and the Nearctic ecozones. In Eurasia it ranges from Great Britain and Scandinavia, south to the Alps, east through Russia and the Russian Far East to Japan. In North America, it is found from Newfoundland to Vancouver Island and Alaska, south in the east to about New Jersey and in the west to Colorado. The scientific name testata is derived from the Latin testa (baked stone) and refers to the base colour of the wing.