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Common Blue

Polyommatus icarus Rottemburg 1775

Abundance

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Rare

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BA Cultnat
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Bibliotheca Alexandrina

Behaviour

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In weak sunlit conditions males often bask on low herbage, with wings held half open. In overcast but warm conditions they sometimes bask with wings fully outspread.

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

Description

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Size: 28-36 mm. The underside margin of both wings with complete row of orange lunules. The underside of the forewing has two black spots near base. The male is violet-blue with black marginal line; while the females is brown with variable degrees of blue suffusion and orange in the hindwing marginal spots centred with black.

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cc-by-nc-sa-3.0
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Bibliotheca Alexandrina
author
BA Cultnat
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Bibliotheca Alexandrina

Distribution in Egypt

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Sinai, and Cairo. AOO = 25 km2. EOO = 41,500 km2. 3 locations.

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Bibliotheca Alexandrina
author
BA Cultnat
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Bibliotheca Alexandrina

Global Distribution

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Widespread (North Africa and Europe to Afghanistan)

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

Habitat

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Meadows and open spaces up to 2000 m.

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

IUCN

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Vulnerable (D2)

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BA Cultnat
author
BA Cultnat
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Bibliotheca Alexandrina

Life Cycle

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.Two generations in most years, three in good years.

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

Records

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6 records. Latest in 1975 (South Sinai)

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

Status in Egypt

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Resident

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

Taxonomy

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Needs revision

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

The Flight Period

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April-July

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Bibliotheca Alexandrina
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BA Cultnat
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Bibliotheca Alexandrina

Trophic Strategy

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Host-plants: Leguminous plants, probably Medicago.

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cc-by-nc-sa-3.0
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Bibliotheca Alexandrina
author
BA Cultnat
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Bibliotheca Alexandrina