The wingspan is 35–40 mm. Notodonta dromedarius has grey or dark brown forewings with rusty and yellowish stains. A broken rust-brown band runs along the outside edge of the forewing. There is a small discal spot, a postmedial crossline which is often broken and outer margins which are suffused dark red. The hindwings are usually pale grey-brown with dark veining. The colouring is very variable and very dark specimens are found.
The moth flies from April to August depending on the location.
- South R. (1907) The Moths of the British Isles, (First Series), Frederick Warne & Co. Ltd., London & NY: 359 pp. online
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- Iron prominent on UKMoths
- Fauna Europaea
- Lepidoptera of Belgium
- Lepiforum e.V.
- De Vlinderstichting (in Dutch)