Wheeleria spilodactylus, the horehound plume moth, is a moth of the family Pterophoridae, first described by John Curtis in 1827. It is found in South-Western and Central Europe and the Mediterranean, Asia Minor and North Africa. It has been introduced to Australia and New Zealand (in 2018 by Manaaki Whenua - Landcare Research) as a biocontrol agent for white horehound (Marrubium vulgare).
The wingspan is . Adults are on wing from July to September depending on the location.
The difficult to see larvae feed on black horehound (Ballota nigra) and white horehound.