Leptotes pirithous

Leptotes pirithous, commonly known as Lang's short-tailed blue or common zebra blue, is a butterfly of the family Lycaenidae.

Leptotes pirithous
Male, dorsal view, Italy
Male ventral view, Portugal
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Lycaenidae
Genus:	Leptotes
Species:	L. pirithous
Binomial name
Leptotes pirithous (Linnaeus, 1767)
Synonyms
Lampides telicanus (Lang, 1789) Papilio pirithous Linnaeus, 1767 Papilio telicanus Lang, 1789 Syntarucus pirithous Papilio plinius Fabricius, 1793 Cupido telicanus f. insulana Aurivillius, 1909

Description

Leptotes pirithous is a small butterfly with a wingspan of 21–29 mm (0.83–1.14 in) in males and 24–30 mm (0.94–1.18 in) in females. The uppersides of the wings are purple bluish in males, bluish brown in female. The undersides are dark beige striped with white lines. The hindwings show marginal orange and black spots and two small tails. For the design of the undersides of the wings they can be confused with Lampides boeticus and Cacyreus marshalli.

Description in Seitz

T. telicanus Lang (? = pirithous L., baeticus Esp.) (77 h; the figure marked male represents a small female). (male violet-blue, female smoky grey with the disc of the forewing bluish white, the intricate markings of the underside appear also above. The underside has on a smoky grey ground a confusion of white lines and rings and around the anal spots of the hindwing very thin blue rings which glitter intensely. South Europe and North Africa, as well as Asia Minor. The form bellieri Ragusa, from Sicily has the underside more unicolorous, washed out. — Larva dark red, with black-lnown dorsal line and dark oblique stripes; in June and the autumn on Melilotus and Medicago, said to be found also on Calluna vulgaris. Pupa yellowish brown, with dark markings. The butterflies in the early spring and again late in summer, singly and usually not plentiful. They like to rest on clusters of Thymus and fly rather fast ; they also appear to migrate in certain years, since the butterfhes, as rare exceptions, have been observed here and there in localities lying far north, for instance at Bale, Stuttgart, Augsburg, Bozen, etc. etc. ^[1]

Biology

These butterflies fly from February to November depending on the location. They are regular migrants.

The larvae feed on the flowers and fruits of Fabaceae, Rosaceae and Plumbaginaceae species, including Plumbago capensis, Indigofera, Rynchosia, Vigna, Burkea, Mundulea, Melilotus, Crataegus, Quercus suber, Medicago sativa, Trifolium alexandrinum, Arachis hypogaea, Lythrum, Calluna, Genista, Dorycnium, Lythrum salicaria, Calluna vulgaris, Onobrychis viciifolia, Ulex and Melilotus alba. A life cycle takes about four to eight weeks, depending on the temperature.

• A courtship ritual in iSimangaliso Wetland Park, KwaZulu-Natal, South Africa
• 
  L. p. pirithous, 1 of 3
  male on left
• 
  L. p. pirithous, 2 of 3
  female covers male
• 
  L. p. pirithous, 3 of 3
  female on male

Distribution

This species can be found in southern Europe (Spain, France and Italy), along the Mediterranean coast, in Asia Minor up to the Himalayas, and in most of Africa and Madagascar.

Subspecies

The following subspecies have been identified:^[2]

• Leptotes pirithous pirithous (southern Europe, Caucasus, Transcaucasia, North Africa)
• Leptotes pirithous capverti Libert, Baliteau & Baliteau, 2011 (island of Santo Antão, Cape Verde)
• Leptotes pirithous insulanus (Aurivillius, 1924) (Mozambique Channel)

Habitat

This species prefers varied wasteland, cultivated areas and gardens.

References

1. Seitz. A. in Seitz, A. ed. Band 1: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen Tagfalter, 1909, 379 Seiten, mit 89 kolorierten Tafeln (3470 Figuren) This article incorporates text from this source, which is in the public domain.
2. Leptotes at Markku Savela's website on Lepidoptera