Gyrocheilus

Gyrocheilus is a monotypic genus in the nymphalid subfamily Satyrinae.^[1] The single contained species is Gyrocheilus patrobas, the red-bordered brown, which is found in North America in central and southern Arizona and Mexico.^[2][1] The habitat consists of streamsides in open coniferous forests in the mountainous areas.

Gyrocheilus
Gyrocheilus patrobas
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Nymphalidae
Subtribe:	Pronophilina
Genus:	Gyrocheilus Butler, 1867
Species:	G. patrobas
Binomial name
Gyrocheilus patrobas (Hewitson, 1862)
Synonyms
Pronophila patrobas Hewitson, 1862 Gyrocheilus tritonia Edwards, 1874

The wingspan is 51–60 mm. There is one generation per year with adults on wing from mid-August to October.

The larvae feed on Muhlenbergia emersleyi.^[3]

Subspecies

• Gyrocheilus patrobas patrobas (Mexico)
• Gyrocheilus patrobas tritonia Edwards, 1874 (Arizona)