Grammia margo
 Grammia margo is a moth of the Arctiidae family. It was described by Schmidt in 2009. It is found in grassland and transitional habitats on the northern Great Plains and Rocky Mountain front ranges south to east-central Arizona.The length of the forewings is 12.3 mm. The forewings are dark brown to black dorsally with pale buff bands. The hindwings are dull yellow to orange-yellow with black markings. Adults are on wing from early May to mid June.