Acacia blue

Surendra vivarna

"Surendra vivarna", the acacia blue, is a species of lycaenid or hairstreak butterfly found in Sri Lanka, India and the Indonesian islands as far as Sulawesi.
Acacia blue butterfly, Surendra vivarna vivarna, family Lycaenidae "upperside"  Acacia blue,Geotagged,Indonesia,Spring,Surendra vivarna

Appearance

For a key to the terms used, see :Glossary of entomology terms.
Upperside: both wings rather intense deep blue: primaries with the costa broadly, posterior margin more broadly, apex still more broadly black; secondaries with the blue limited to just over the median area, the rest of the wings black. Tails two, black, the longer one white-tipped. Underside : both wings very dark greyish brown: primaries with an obscure dark dot near the centre of the cell and a small dash closing it, costa with three dark dots; transverse blackish line curved irregularly and scalloped from the costa to the submedian nervure, a submarginal row of blackish dots, margin obscurely dark, internal area quite pale: secondaries with a small white spot about one-third along the costal nervure, below which is an obscure dark short dash in the cell; from two-thirds along the costa to the middle of the abdominal margin is a narrow, indefinite, obscure band of dark shading edged externally and sharply with white, a submarginal row of dark spots forming an almost lunular line; on each side of the long tail is a slight grey scaling.

Upperside: both wings entirely dark brown. Underside as in the male, but decidedly paler.— Bethune-Baker, "A Revision of the Amblypodia Group of Butterflies of the Family Lycaenidae"
Acacia Blue Butterfly, Surendra vivarna vivarna, family Lycaenidae  Acacia blue,Geotagged,Indonesia,Surendra vivarna,Winter

Naming

* "Surendra vivarna amisena" Hewitson, 1862,
⤷  "Surendra vivarna palowna" Staudinger, 1889,
⤷  "Surendra vivarna samina" Fruhstorfer, 1904,
⤷  "Surendra vivarna agdistis" Fruhstorfer
⤷  "Surendra vivarna biplagiata" Butler, 1883
⤷  "Surendra vivarna latimargo" Moore, 1879
⤷  "Surendra vivarna discalis" Moore
The acacia blue butterfly, Surendra vivarna vivarna - Male, upperside  Acacia blue,Geotagged,Indonesia,Spring,Surendra vivarna

Food

Fabaceae and it is facultatively attended by various ants.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderLepidoptera
FamilyLycaenidae
GenusSurendra
SpeciesS. vivarnana
Photographed in
Indonesia