''Thestor basutus'', the Basuto skolly or Basuto magpie, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

of the family

Lycaenidae Lycaenidae is the second-largest family of butterflies (behind Nymphalidae, brush-footed butterflies), with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of the known butterfl ...

. It is found in

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

Botswana Botswana (, ), officially the Republic of Botswana ( tn, Lefatshe la Botswana, label=Setswana, ), is a landlocked country in Southern Africa. Botswana is topographically flat, with approximately 70 percent of its territory being the Kalahar ...

and

Zimbabwe Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozam ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 30–39 mm for males and 35–42 mm for females. Adults are on wing from October to November and from February to April. There is one generation per year. Larvae of subspecies ''basutus'' have been reared on psyllids in nests of the pugnacious ant (''

Anoplolepis custodiens ''Anoplolepis custodiens'', commonly known as the common pugnacious ant, is a species of ant in the genus ''Anoplolepis'', native to central and southern Africa. Individual ants may come in a range of colors and sizes. Found in dry and cultivated ...

''). Larvae of subspecies ''capeneri'' feed on '' Pulvinaria iceryi'' until their third

instar An instar (, from the Latin '' īnstar'', "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (''ecdysis''), until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or ass ...

, the fourth and final instar larvae live in the nests of pugnacious ants, which feed them by

trophallaxis Trophallaxis () is the transfer of food or other fluids among members of a community through mouth-to-mouth ( stomodeal) or anus-to-mouth ( proctodeal) feeding. Along with nutrients, trophallaxis can involve the transfer of molecules such as pher ...

, they also feed on detritus and ant larvae.

Subspecies

*''Thestor basutus basutus'' (East Cape to Lesotho, the KwaZulu-Natal midlands, the Orange Free State, the North West Province and North Cape, Botswana, eastern Zimbabwe) *''Thestor basutus capeneri'' Dickson, 1972 (Gauteng and, Limpopo Province and Mpumalanga)

References

Butterflies described in 1857 Thestor {{Miletinae-stub