Host plants:
The larvae live polyphagous in the herb layer, but seem to prefer Rumex maderensis in La Palma (according to own observations).
Habitat:
Mniotype fratellum occurs especially in medium and higher altitudes (laurel-leaf forests, pine woodlands) where it prefers humid and cool conditions.
Life cycle:
Mniotype fratellum occurs in several generations. In the drier summer, however, most pupae enter diapause and thus it is not likely to encounter many adults then.
Remarks:
Mniotype fratellum is endemic to the Canary Islands and occurs obviously only in La Palma and Gran Canaria.