Purple crow butterfly : Four spices of purple butterfly

Dwarf Crow Butterfly

Euploea tulliolus koxinga Fruhstorfer : upper wings the center of the back has no white patch
Male: the front edge of back wings has one slit, and the back edge of upper wings is projecting
Female: the back edge of upper wings is flat.

Blue-branded King Crow Butterfly

Euploea Eunice hobsoni (Butler): the center of upper wings have a white patch, the back the center of has one – two big white patch
Male: The shape for the back edge of front wings is projecting, the back edge of the abdomen has long striped slit
Female: the back edge of upper wings is flat

Two-branded Crow Butterfly

Euploea Sylvester swinhoei Wallace & Moore: The center of the upper wings has three white patches lined up as a triangle and the back of the upper wings is full of purple scales.
Male: the back of upper wings has two long slits, the shape of back edge
wings are projecting
Female: the back edge of the upper wings is flat.

Striped Blue Crow Butterfly

Euploea mulciber barsine Fruhstorfer: The center of upper wings has one white patch, the purple scales centralized in the end of the back of the upper wings
Male: the center of back wings with stripes
Female: back wings are full of stripes (the way of lining similar to Tirumala
Septentronis (Butler)