Which environment does the Small White (P. napi) tend to favor, especially for its spring brood?
Answer
Marshes, fens, and wetter meadows
Habitat preference serves as a useful secondary clue when attempting to differentiate between the common white butterflies, particularly when wing patterns are obscured or unclear. The Cabbage White (*P. rapae*) strongly favors drier, disturbed areas where its food plants (Brassicaceae) thrive near human activity. In contrast, the Small White (*P. napi*) exhibits a distinct affinity for moisture-rich environments. It tends to seek out damper locales such as marshes, fens, and wetter meadows, especially during the period when its initial spring brood is active, creating a habitat split between the two similar species.

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