Plain Plushblue caterpillar and its attendant ant

“The Plain Plushblue (Flos apidanus saturatus) (above) caterpillar has an attendant ant that feeds on the nectary fluid the former secretes, and seldom leaves its back (below left). The image below-right shows the pupa, almost ready to eclose, its brilliant blue uppersides showing through the translucent pupal case.

“The sweet fluid is secreted through the caterpillar’s dorsal nectary organ near the end of its abdomen. Here’s a short video of it in action:”

Lena Chow
6th March 2015


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