Stygionympha robertsoni

Stygionympha robertsoni, or Robertson's brown, is a butterfly of the family Nymphalidae. It is found in South Africa, in Northern Cape, the southern part of Free State, the northern part of Western Cape and the Eastern Cape.

Stygionympha robertsoni
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Lepidoptera
Family:
Nymphalidae
Genus:
Stygionympha
Species:
S. robertsoni
Binomial name
Stygionympha robertsoni
(Riley, 1932)[1]
Synonyms
  • Pseudonympha vigilans robertsoni Riley, 1932

The wingspan is 38–40 mm. Adults are on wing from August to March. There are probably multiple generations per year.[2]

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

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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