Pygarctia roseicapitis, the red-headed pygarctia moth, is a moth in the family Erebidae.

It was described by Berthold Neumoegen and Harrison Gray Dyar Jr. in 1893.

It is found in Mexico[2] and in the United States from southern Arizona to Texas.

The larvae feed on various Euphorbiaceae species, including Chamaesyce hyssopifolia.

Full-grown larvae reach a length of about 30 mm.