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Long-tailed Blue

Lampides boeticus (Linnaeus, 1767)

Status

Corfu Status: Present EU Red Data Status 2010: Least Concern

Description

A small butterfly with a fawn underside with wavy white lines, with a tail on the hindwing. The males have a violet-blue upperside, and the females are brown with a blue suffusion. There are two black spots by the tail on both sides of the wing. The underside of the wings are distinctive, and could only be confused with Leptotes pirithous, which has more extensive white markings on the underside. The butterfly is found on dry open ground, and has multiple generations a year.

Habitat Requirements

Given the highly migratory nature of this species it is unlikely to be restricted to any particular habitat. However, it is frequently encountered in gardens or road side verges on the flowers of common plants such as Bramble and Inula.

Larval Foodplants

Bladder-senna Colutea arborescens, Lathyrus grandiflorus (large pink/purple flowers), Garden Pea Pisum sativum subsp. biflorum, Garden Pea Pisum sativum subsp. sativum. Anne Sordinas observed oviposition, in Corfu, on Lathyrus latifolius and Wisteria spp. possibly sinensis.

John Denne and Dan Danahar observed oviposition on Plumbago spp. possibly auriculata.

Observations

A globally distributed species that has shown a marked spread northwards in continental Europe over the last ten years. It is a resident on Corfu whose abundance must be affected by major migration events.

Mark Colvin observed larvae burrowing into the inside of the seed pods of Broad-leaved Everlasting Pea Lathyrus latifolius, apparently for protection, when captive rearing this species in the UK. However, Dan Danahar did not observe this behaviour replicated when he reared the species.

*The information provided in the tables below is based on verified sightings of the Long-tailed Blue submitted via this website since 1st January 2021.

First and Last Sightings

Year First Last/latest # Days
2021 25/05/2021 01/12/2021 190 days
2019 16/08/2019 20/09/2019 35 days

Number of Observations

Year Number of observations
2022 0
2021 187
Grand Total 199

Distribution Map

Distribution map for the Long-tailed Blue based on the data submitted online via this website will be available below soon.

Flight Times for the Long-tailed Blue (2022)

The chart below shows Long-tailed Blue flight data by month for 2022 submitted online since 1st January 2022 to 17th May 2022.

Flight Times for the Long-tailed Blue (All Data)

The chart below shows Long-tailed Blue flight data by month based on all data submitted online since 1st January 2019 to 17th May 2022.

Taxonomy

  • Vernacular/Common Name: Long-tailed Blue
  • Family: Lycaenidae (Leach, 1815)
  • Sub-family: Polyommatinae (Swainson 1831)
  • Tribe: Polyommatini (Swainson 1831)
  • Sub-tribe: Lampidina ()
  • Genus: Lampides (Hübner, 1819)
  • Species: boeticus (Linnaeus, 1767)

References

For a list of references, please see our bibliography page.