The male flies during the day. Its palpi are short, porrect (extending forward), and heavily fringed with hair. Antennae with long branches and with long spines at extremities. Legs heavily hairy. Abdomen with a dorsal tuft on second segment. Forewings with vein 9 arising from vein 10 and anastomosing with vein 8 to form an areole. Hindwings with veins 3 and 4 from angle of cell. Vein 5 from just above angle. Vein 6 and 7 stalked.
In the female, the palpi and legs are less hairy. Antennae serrate. Wings aborted, scale-like and covered with hair. Abdomen covered with hair and immensely dilated when full of eggs.
- Orgyia albofasciata (Schintlmeister, 1994)
- Orgyia amphideta (Turner, 1902)
- Orgyia antiqua (Linnaeus, 1758) – rusty tussock moth, vapourer moth
- Orgyia araea (Collenette, 1932)
- Orgyia ariadne (Schintlmeister, 1994)
- Orgyia australis Walker, 1855
- Orgyia basinigra (Heylaerts, 1892)
- Orgyia cana H. Edwards, 1881
- Orgyia chionitis (Turner, 1902)
- Orgyia definita Packard,  – definite tussock moth
- Orgyia detrita Guérin-Méneville,  – fir tussock moth
- Orgyia dewara Swinhoe, 1903
- Orgyia falcata Schaus, 1896
- Orgyia fulviceps (Walker, 1855)
- Orgyia leptotypa (Turner, 1904)
- Orgyia leucostigma (Smith, 1797) – white-marked tussock moth
- Orgyia leuschneri Riotte, 1972
- Orgyia magna Ferguson, 1978
- Orgyia osseana Walker, 1862
- Orgyia papuana Riotte, 1976
- Orgyia pelodes (Lower, 1893)
- Orgyia postica (Walker, 1855)
- Orgyia pseudotsugata (McDunnough, 1921) – Douglas-fir tussock moth
- Orgyia semiochrea (Herrich-Schäffer, )
- Orgyia thyellina Butler, 1881
- Orgyia vetusta Boisduval, 1852 – western tussock moth
- Orgyia viridescens (Walker, 1855)
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- Savela, Markku (July 5, 2019). "Orgyia Ochsenheimer, 1810". Lepidoptera and Some Other Life Forms. Retrieved May 16, 2020.
- Beccaloni, G.; Scoble, M.; Kitching, I.; Simonsen, T.; Robinson, G.; Pitkin, B.; Hine, A.; Lyal, C., eds. (2003). "Orgyia". The Global Lepidoptera Names Index. Natural History Museum. Retrieved May 16, 2020.
- Pitkin, Brian & Jenkins, Paul (November 5, 2004). "Orgyia Ochsenheimer, 1810". Butterflies and Moths of the World. Natural History Museum, London. Retrieved May 16, 2020.
- Hampson, G. F. (1892). The Fauna of British India, Including Ceylon and Burma: Moths Volume I. Taylor and Francis. p. 436 – via Biodiversity Heritage Library. This article incorporates text from this source, which is in the public domain.
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