SMALL TORTOISESHELL BUTTERFLY (Aglais urticae), twelve were counted during a two hour visit including this tattered individual nectaring on Dandalions (Taraxacum Officinale agg.) at Balscadden, Howth, Fingal, Co. Dublin, Ireland

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The Small Tortoiseshell Butterfly (Aglais urticae) is of the family Nymphalidae which is in the genus Aglais. It has a widespread distribution in the Palearctic region but is absent from southern Asia.  

 Overwintering as an adult, its cryptic under wing pattern helps to avoid detection by predators. It emerges from hibernation in the spring to lay eggs on its larval plant. The caterpillars (larvae) feed on Common Nettle (Urtica dioica).

Patrick J. O'Keeffe / Raw Birds

PEACOCK BUTTERFLY (Aglais io) at Broadmeadow Estuary, Swords, Fingal, Co. Dublin, Ireland

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The Peacock Butterfly (Aglais io) is of the family Nymphalidae which is in the genus Aglais. It overwinters as an adult with its wings closed and the dark cryptic under wing pattern help it avoid detection by predators.

 

 Patrick J. O'Keeffe / Raw Birds

HOLLY BLUE BUTTERFLY (Celastrina argiolus) female Broadmeadow Estuary, Swords, Fingal, Co. Dublin, Ireland

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The Holly Blue Butterfly (Celastrina argiolus) is a small butterfly in the family Lycaenids which is in the genus Celastrina. It is a widespread species and occurs in North America as well as Eurasia but is absent from the colder northern parts of this range. Up to 14 subspecies are generally recognised. There are two generations and it is one of the earliest blue butterflies to be seen, emerging in late spring. Later in the season, it can be confused with similar coloured species but it has very distinctive black speckling on its under wing.  
Patrick J. O'Keeffe / Raw Birds

HOLLY BLUE BUTTERFLY (Celastrina argiolus) male, Broadmeadow Estuary, Swords, Fingal, Co. Dublin, Ireland

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The Holly Blue Butterfly (Celastrina argiolus) is a small butterfly in the family Lycaenids which is in the genus Celastrina. It is a widespread species and occurs in North America as well as Eurasia but is absent from the colder northern parts of this range. Up to 14 subspecies are generally recognised. There are two generations and it is one of the earliest blue butterflies to be seen, emerging in late spring. Later in the season, it can be confused with similar coloured species but it has very distinctive black speckling on its under wing.  
Patrick J. O'Keeffe / Raw Birds