Ant like moth caterpillar

When I was at Pulau Ubin last month, I chanced upon a batch of ant-like caterpillars feeding on Melastoma malabathricum.

When disturbed, it will lift up its head and waves its legs. I found out later from Tzi Ming that this is the caterpillar of the Neostauropus alternus, a drab brown moth ;-(

A few of my hawk moths Caterpillar has pupated!They are (from the top) :
-Psilogramma menephron
-Enpinanga borneensis
-Eupanacra elegantulus or E. mydon.

You can see photo of P. menephron and E. borneensis in my earlier post.

This is how the E. elegantulus(mydon?) caterpillar looks like