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Long-tailed Blue Butterfly - Lampides boeticus

Phylum: Arthropoda - Class: Insecta - Order: Lepidoptera - Family: Lycaenidae

Long-tailed Blue Butterfly, Lampides boeticus (female)

Above: a female Long-tailed Blue

Description

This butterfly gets its common name from the long thin tail on the trailing edge of each hindwing. The tails are black with white tips, but unfortunately the butterfly pictured above has suffered damage to its hindwings and so the tails are not evident. As with so many other butterflies, the males (wingspan 24-32mm) are often slightly smaller than the females (wingspan 24-34mm). The pale bar on the intricately patterned underwing helps distinguish it from the very similar Lang's Short-tailed Blue, Leptotes pirithous.

Long-tailed Blue Butterfly, Lampides boeticus, closed wings

Distribution

In Britain the Long-tailed Blue occurs along the south coast of England and the Channel Islands very occasionally as a migrant, but it is a very rare sight in Britain because the winters are generally too cold for its survival. On mainland Europe this is a butterfly of southern countries. Elsewhere this species can be found in northern Africa and in parts of Asia and Australia.

Long-tailed Blue Butterfly, Lampides boeticus, Portugal

Habitat

Within its natural range, this is a butterfly of flowery places, including woodland edges, wildflower meadows, crop fields and gardens.

Lifecycle

The larval foodplants used by the Long-tailed Blue include various peas (Fabaceae), and it is considered a pest of Broad Bean and Pea crops in agricultural areas, where it feeds first on the leaves and then on the contents of the seedpods.

Long-tailed Blue Butterfly, Lampides boeticus, Algarve

Above: a male Long-tailed Blue butterfly seen in the Algarve in May.

Acknowledgements

This page includes pictures kindly contributed by Rob Petley-Jones ands by Betty and Tony Rackham.

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