Bug FAQSilver-bottom Brown
Pseudonympha magus · Order: Lepidoptera · Family: Nymphalidae
The silver-bottom brown (Pseudonympha magus) is a butterfly in the Nymphalidae family. Its wingspan ranges from 40 to 44 mm for both males and females. It lives along South Africa’s southern coast, from the Western Cape near Cape Town eastward to the Eastern Cape.
Source: Wikipedia
How to recognize it
Pseudonympha magus, known as the silver-bottom brown, belongs to the butterfly family Nymphalidae.
Source: Wikipedia
Size
Adults have a wingspan of 40 to 44 mm, regardless of sex.
Source: Wikipedia
What it eats
Caterpillars feed on grasses in the Poaceae family, such as Cynodon dactylon, and can also be raised on Ehrharta erecta.
Source: Wikipedia
Life cycle
Adults are active from September through April, with peak numbers in October and February, and there are two overlapping generations each year.
Source: Wikipedia
When you see it
The flight period for adults spans September to April, peaking in October and February.
Source: Wikipedia
Where it comes from
Its native range is the southern coastal region of South Africa, extending from the Western Cape to the Eastern Cape.
Source: Wikipedia
Same family (Nymphalidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Pseudonympha_magus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.