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Short-tailed Blue

The Short-tailed Blue or Tailed Cupid (Cupido argiades)[1] is a butterfly in the family Lycaenidae. It is found from Central Europe to Japan.

Description[edit]

The male has a violet upperside, a violet forewing with brown edging, and a violet hindwing with a brown edging of varying length. The wings have black spots, some of which have slight white edging. The tail is black with a white tip. The underside of the wings are white or brownish grey, the markings prominent or very faint. The antennae are black with white speckling on the shafts. The body is brown with a purple flush on fresh specimens.

The female has a dark grey-blue upperside, with black parts and broader edging. The undersides of the wings are like those of the male but with more stark markings. The body is like that of the male but without the purple flush.

Specimens from very dry localities in Upper Burma and from Great Nicobar Island are remarkably small and pale, with the markings on the underside, especially the subtornal ochraceous yellow patch, more or less obsolescent.[2]

Distribution[edit]

The Holarctic region, Oriental region and Notogaean realm. The butterfly flies from May to September depending on the location.

Life cycle[edit]

The larva is light green with a dark stripe on the back and dark streaks on the sides, with some brownish and white spots. It feeds on legume plants, including Lotus uliginosus.[2]

The pupa is the same color as the larva or darker and black-spotted.[2]

References[edit]

  1. ^ Cupido argiades, funet.fi
  2. ^ a b c Bingham, C. T. 1907. Fauna of British India. Butterflies. Volume 2

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