Wildlife of Britain

The Small Tortoiseshell Butterfly (Aglais urticae): A Resilient and Familiar Species The Small Tortoiseshell butterfly (Aglais urticae) is one of the most recognisable and historically widespread butterflies in the United Kingdom.  Its vivid orange wings, patterned with black markings and bright blue marginal spots, make it a distinctive species frequently encountered in gardens, meadows, woodland edges, and urban green spaces.  Unlike many butterfly species that are strongly tied to particular habitats, the Small Tortoiseshell demonstrates remarkable ecological flexibility, allowing it to thrive across a wide range of landscapes. For centuries, this butterfly has been closely associated with human environments. It often enters buildings during autumn to hibernate and is among the first butterflies seen on warm spring days.  Despite its adaptability, the species has experienced notable population fluctuations across parts of the UK during the past few decades, prompting i...