Clostera pigra, the small chocolate-tip, is a moth of the family Notodontidae. It is a Palearctic ecozone species found from Europe ranging to Morocco in the south and Eastern Asia in the east. The wingspan is 22–27 mm. Imagos are dark brown to reddish brown in colour and have several narrow, pale yellow lines on the front wings. A large maroon spot is located at the wing tip. The hindwings are dark brown. The thorax has densely dark reddish brown hairs on the back. The tip of the abdomen consists of a split tuft in males. The antennae are short and double-combed. The teeth of the comb in the male are longer than in the female.