Stygionympha vigilans

Stygionympha vigilans, the western hillside brown, is a butterfly of the family Nymphalidae. It is found in South Africa on the seaward side of the mountains from Cederberg south to the Cape Peninsula in the Western Cape and along the Drakensberg mountains to Grahamstown in the Eastern Cape.

Stygionympha vigilans
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Nymphalidae
Genus: Stygionympha
Species:
S. vigilans
Binomial name
Stygionympha vigilans
(Trimen, 1887)[1]
Synonyms
  • Pseudonympha vigilans Trimen, 1887

The wingspan is 45–48 mm. Adults are on wing from October to December and from August to April (with peaks from October to November and February). There are probably multiple generations per year.[2]

The larvae feed on Poaceae grasses. Larvae have also been reared on Ehrharta erecta and Ischyrolepsis cinncinnata.

References
  1. "Stygionympha van Son, 1955" at Markku Savela's Lepidoptera and Some Other Life Forms
  2. Woodhall, Steve (2005). Field Guide to Butterflies of South Africa. Cape Town, South Africa: Struik. ISBN 978-1-86872-724-7.
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