The Oak Hook-tip (Watsonalla binaria) is a species of moth in the Drepanidae family. This species is widespread in the South of Britain, and inhabits woodlands and gardens throughout Summer. This species can be a chestnut colour, but can also be a straw colour. There are two black dots on the forewing, but no dots on the hindwing. The male sometimes flies during day-time around trees, but is usually active at night.