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 small dark brown butterfly, with clear white marks on its wings. The white postdiscal spots on the forewing upperside in S4 and S5 are not contiguous with the spots in S6 to S8 (near the tip of the wing), which enables separation from the similar species in the genera Carcharodus and Muschampia. Also, the submarginal spots are normally present. On the underside of the hindwing, the ground colour is reddish-brown, and the white basal spot in S7 (font) is smaller than the other two, whereas in P. armoricanus they are the same size. Male and female are similar.
Generalised wing venation diagram
A generalised diagram of butterfly wing venation, with anatomical labels - by Gillian Elsom.
Hesperiidae wing venation diagram
The wing venation of a Grizzled Skipper butterfly Pyrgus malvae an example of a butterfly from the family Hesperiidae - by Gillian Elsom.
In the UK this species occupies a range of different habitats, including: woodland glades, coastal dunes, grasslands and even brown-field sites. However, on closer examination the fine scale structure of the niche occupied by this butterfly is the same in each of these habitats. In the UK the Grizzled Skipper is a thermally restricted species and so the females oviposit in locations that aid the development of both the ova and the larva, by choosing areas where microtopography manipulates temperature at ground level.
In Corfu where the temperatures are much higher it is difficult to understand why this species is encountered so irregularly. Whilst Rubus maybe utilised as a host plant, this usually only takes place in the late instars, when the mouth parts of the larvae are large enough to cut through the tough foliage of the plant.