Blue Oakleaf on a Pink Cassia

Okay, this is going to read like one of those puzzle pages, but .... guess the odd one out in this picture. The one that just doesn't belong here. No way !
No? Need another clue? Okay !

Is that better?
Hmmm..... could it be the orchids which are actually in bloom? No-o-o , they're looking good for a change, but that's not the answer.
Could it be the hairy strands winding around the tree? No again, that's just the roots of the orchid, clinging on for dear life.
Or that big fat fly on the orchid cane?

Look closer! That leaf ... why on earth is that leaf just stuck to the tree like that, defying all the rules of gravity ?
And that tree is a Pink Cassia. Which has lovely feathery leaves. So why am I photographing a leaf... a dead leaf at that? AND making such a big issue out of it?

Okay, I like to tease, so here's another look at this amazing leaf.
Amazing?
Hold your breath while I flirt with danger now (hornet stings can be fatal, you know).
Drum roll, please !
And ... Ta-DAH !!!
Isnt she absolutely gorgeous! Feast your eyes on Miss Blue Oakleaf, the reigning butterfly beauty to beat all beauties, in my opinion. The Blue Oakleaf .... South Indian Blue Oakleaf (Kallima horsfieldi) to be precise ... belongs to that special class that every gardener should love. She's a Leaf Butterfly!

I usually see her in my garden in Mumbai around October and then she lingers awhile. Her favourite haunt seems to be my Pink Cassia tree. Remember that grand party which the hornets threw ? It seems she is partial to Cassia sap. What an interesting leaf!

Vibrant indigo-blue flashes and winks at you every time she fans her wings open. At rest, though, no one would give her a second glance. Wings folded, she's perfectly disguised as an uninteresting dry leaf, complete with midrib and veins! She even has a slight curve of a petiole to help to complete the disguise. She certainly fools the hornets into letting her get up close and personal.

Beauty with brains ... I bet James Bond would've loved her !