The [A fallax] males are a bright electric blue and have two rows of reddish orange spines along the edges of the femur.
Females have a duller outlook. They are a light brown with red spines covering the entire thorax and the top of the head.
The male grows up to 13 cm in length while the female is much bigger and can grow up to 18, 5 cm in length.
The wings are non-functional for flight.
Thankfully, they’re vegetarians.
Or tree-etarians, as in captivity they will survive happily on bramble, raspberry, eucalyptus, or oak; it’s not entirely clear what their primary source of food is in the wild.
Via Wikipedia.