"The Blue Tiger (Tirumala limniace) is a butterfly found in India that belongs to the crows and tigers, that is, the danaid group of the brush-footed butterfly family. This butterfly shows gregarious migratory behaviour in southern India." Ref:http://en.wikipedia.org/wiki/Tirumala_limniace
"This species migrates extensively during the monsoons in southern India. The migratory populations have been observed to consist nearly entirely of males. It is also known to mud-puddle during migration." Ref: http://en.wikipedia.org/wiki/Tirumala_li...
I saw about 200 of them swarming around a herbaceous plant. Spotted near Kallar river,Kerala.
Lat: 8.71, Long: 77.13
Spotted on Nov 17, 2013
Submitted on Nov 19, 2013