I don't know... the picture from before the molt looks like a H. pulchripes, including blue legs (or can the H. hamiltoni have blue coloration on the legs as well? In that case, never mind). I have seen pictures of older H. pulchripes specimen online which seem to have a relatively dark coloration as well (though the lighting under which the photo was taken is always a factor, of course).perhaps yours is actually H. hamiltoni?