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 medium sized yellow butterfly with a prominent black margin on the upperside, which can be seen on the underside. There is also a very pale yellow form. The butterfly always rests with its wings closed. Males and females are similar, with the female has yellow spots in the black margin. There is a single black discal spot on the forewing, and an orange discal spot on the hindwing. The pale coloured helice form, could be confused with butterflies in the genius Pieris whilst in flight.
Generalised wing venation diagram
A generalised diagram of butterfly wing venation, with anatomical labels - by Gillian Elsom.
Pieridae wing venation diagram
The wing venation of a male Brimstone butterfly Gonepteryx rhamni an example of a butterfly from the family Pieridae - by Gillian Elsom.
Given that this butterfly is a strong migrant it comes as no suprise to see it just about anywhere on the island. However, it is frequently seen more on the coast and less likely in urban environments.
Whilst this species is probably breeding throughout the year on Corfu, population numbers must be massively affected by migration events. It regularily nectars on Knapweed Centaurea spp., Dandelion Taraxacum spp., Fleabane Erigeron spp., Marjoram Origanum vulgare and Ragwort Senecio jacobaea.
*The information provided in the tables below is based on verified sightings of the Clouded Yellow submitted via this website since 1st January 2021.