Small Tortoiseshell

Small Tortoiseshell - Aglais urticae

Description

A familiar butterfly with orange-brown wings that are marked with blues and darker browns. The orange upper sides of the wings provide a contrast with the drab undersides.

Designation

Indicator Species - Leicestershire, Leicester & Rutland Local Nature Recovery Strategy.

Identification difficulty
Habitat

This butterfly can turn up almost anywhere, from city centres to mountaintops. Tt has been one of our most successful butterflies but populations have fallen in recent years. It is most-often seen, however, where nettles grow in abundance, such as field margins.

When to see it

All year round, but mainly from April to September.

Life History

This butterfly is often encountered while hibernating in an outbuilding, such as a garage, shed or barn. Other hibernation sites include hollow trees and woodpiles. Adults normally emerge from hibernation at the end of March and start of April. There are typically two broods each year, except in the north where there is usually only a single brood. The butterfly is a familiar sight in late summer as it takes nectar to build up essential fats in preparation for hibernation. It breeds on Nettles.

UK Status

This is one of our most widespread butterflies, occurring throughout the British Isles, including The Orkneys and Shetlands. Unfortunately this butterfly has suffered a worrying decline, especially in the south, over the last few years.

VC55 Status

Common in Leicestershire and Rutland (but has not done well in recent years).

Reference
59.027 BF1593

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

All NatureSpot records