Should be Tiny Grass Blue. I believe they rub their wings to warm up and ease the flow of hemolymph fluid in the wings and also to catch the attention of birds towards their hindwing tails that resemble antennae. Since many of the lycaenids have bright blue colorations on their UP hindwings, it can also confuse the birds.
Kishen On Sun, May 29, 2011 at 10:05 PM, Jency Samuel <[email protected]>wrote: > > > > I found grass blue butterflies in my backyard rubbing the hind wings > together. I would like to know why they do it. And is it lesser or tiny > grass blue? > > Rgds > Jency > > > -- Enjoy
