Hampson, G. F. 1910. Catalogue of the Noctuidae in the Collection of the British Museum. Catalogue of the Lepidoptera Phalaenae in the British Museum IX:i-xv, 1-552, [CXXXVII-CXLVII].

Hardwick, D. F. 1970. A generic revision of the North American Heliothidinae (Lepidoptera: Noctuidae). Memoirs of the Entomological Society of Canada 73:1–59.

Klöcker, A. 1913. Sommerfugle. III. Natsommerfugle. II. Del. Danmarks Fauna 13. 201 s.

Matthews, M. 1991. Classification of the Heliothinae. Natural Resources Institute Bulletin No. 44. 198 s.

Mikkola, K. & Jalas, I. 1979. Yökköset 2. Suomen perhoset . Suomen Perhostutkijain Seura. Otava, Helsinki. ISBN 951-1-04297-1. 304 s.

Rákosy, L. 1996. Die Noctuiden Rumäniens (Lepidoptera Noctuidae). Stapfia 46:1-648.

Warren, W. 1909-1913. Noctuidae. Teoksessa: Seitz, A. (toim.): The Macrolepidoptera of the World. A systematic description of the known Macrolepidoptera edited with the collaboration of well-known specialists. The Macrolepidoptera of the Palearctic Region. 3. Volume: The Noctuid Moths. Verlag des Seitz'schen Werkes (Alfred Kernen), Stuttgart. 511 s.

Pyrrhia