Lampides boeticus

Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Papilionoidea
Family: Lycaenidae
Genus: Lampides
Species: L. boeticus

Spanish:
Generaciones: mayo- junio- julio y agosto
Hábitat: Prefiere prados abiertos, en bordes de bosque y cerca de cursos de agua.
Altitud: hasta 2.500 metros de altitud
Observaciones: se alimentan de astragalus, genistas, coluteas...

English:
Long-tailed blue - Lampides boeticus
The eggs hatch into slug-like Caterpillars. They are off-white with a black head. They feed on the the flowers of the foodplant, and grow to a length of 1 cm.
They pupate in a flower, so that when the flower dies, shrivels, and falls to the ground, the pupa falls with it. The pupation period can be about a fortnight, or a year, even for Caterpillars that pupated at the same time!
The adults are dimorphic: the males and females being different. The tops of the wings of the males are blue, whereas those of the females are blue with wide dark brown edges.
Underneath, they both have a brown and white pattern. They both have a little tail on each hind wing, with a pair of small black eye-spots beside each tail. Presumably, the pair of eye-spots and tails (fake antennae) are useful for confusing predators about which end of the animal is which. The butterflies have a wingspan of about 3 cms.
Males set up small territories which they patrol, fighting off rival males who trespass. If the resident male is removed, another one soon appears take his place and the one territory is used by males year after year. The species is found all over the world