At least three independent records from different recorders/locations/dates.
Breeds and has its complete lifecycle throughout the year on Corfu. Population is self-sustaining.
Regular immigrant and/or emigrant from Corfu. May also breed but is usually not present all the year around.
Found outside its normal range, such as outside its known habitat. Not enough records to confirm as a Resident or a Migrant.
A species that is expanding its range, but is not self-sustaining, and is reliant on migrants to sustain its population. This is the stage before a species becomes a resident, or a species which is right on the edge of its known distribution.
Records that have not been substantiated and therefore the existence of such a species on Corfu is uncertain.
EU Red Data Status Definitions
Not Evaluated (NE)
A taxon is Not Evaluated when it has not yet been evaluated against the criteria
Data Deficient (DD)
A taxon is Data Deficient when there is inadequate information to make a direct, or indirect, assessment of its risk of extinction based on its distribution and/or population status. Data Deficient is therefore not a category of threat. Listing of taxa in this category indicates that more information is required and acknowledges the possibility that future research will show that threatened classification is appropriate.
Least Concern (LC)
A taxon is Least Concern when it has been evaluated against the criteria and does not qualify for Critically Endangered, Endangered, Vulnerable or Near Threatened. Widespread and abundant taxa are included in this category.
Near Threatened (NT)
A taxon is Near Threatened when it has been evaluated against the criteria but does not qualify for Critically Endangered, Endangered or Vulnerable now, but is close to qualifying for or is likely to qualify for a threatened category in the near future.
A taxon is Vulnerable when the best available evidence indicates that it meets any of the criteria A to E for Vulnerable (see Section V), and it is therefore considered to be facing a high risk of extinction in the wild.
A taxon is Endangered when the best available evidence indicates that it meets any of the criteria A to E for Endangered (see Section V), and it is therefore considered to be facing a very high risk of extinction in the wild.
Critically Endangered (CR)
A taxon is Critically Endangered when the best available evidence indicates that it meets any of the criteria A to E for Critically Endangered (see Section V), and it is therefore considered to be facing an extremely high risk of extinction in the wild.
Extinct in the Wild (EW)
A taxon is Extinct in the Wild when it is known only to survive in cultivation, in captivity or as a naturalized population (or populations) well outside the past range. A taxon is presumed Extinct in the Wild when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form.
A taxon is Extinct when there is no reasonable doubt that the last individual has died. A taxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, at appropriate times (diurnal, seasonal, annual), throughout its historic range have failed to record an individual. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form.
A distinctive large butterfly, which has two prominent tails on the hindwing. The upperside is a rich dark-brown with a wide yellow-brown margin, and a series of blue submarginal spots on the hindwing. The underside is a rich-brown, with white markings basally, a white band, and yellow-brown margins. Males and females are similar. The markings are unique within Europe, so can’t be confused for any other species.
Generalised wing venation diagram
A generalised diagram of butterfly wing venation, with anatomical labels - by Gillian Elsom.
Nymphalidae wing venation diagram
The wing venation of a Peacock butterfly Aglais io an example of a butterfly from the family Nymphalidae - by Gillian Elsom.
Populations of this butterfly can often be found in in association with mature stands of its host tree, often along the coast, where onshore breezes may reduce the stature of these trees. This natural management of vegetation structure may aid the behavioural ecology of this butterfly, given that it is territorial and roosts in master trees, surveying its terrain, which is often comaparible to forest glades. Where it is found in land, the habitat is frequently hot, dry and the provides open glades.
Arbutus andrachne, Strawberry Tree Arbutus unedo, Orange Citrus x sinensis - introduced, Nicotiana glauca.
Dan Danahar has observed this butterfly coming to a bait made from 90% mashed, rotten bananas and 10% Ouzo, on the Greek mainlain. However, attempts to replicate this behaviour in Corfu have never been successful.
*The information provided in the tables below is based on verified sightings of the Two-tailed Pasha submitted via this website since 1st January 2021.