You have a good question. I'm not sure I know the correct answer. You have a male and a female. I haven't seen very many specimens to know how variable they are.
They are two different species. I have a few specimens of the one at top: P. malaccensis
I have only one specimen of the one below. Their similarity is remarkable. I don't know if Jiroux is working on this tribe anymore. There are many undescribed species and the genera are confusing.
The bottom one is undescribed. In fact, I had sent my specimen to Hudepohl in 1999, and he was unable to identify it, but he did identify a specimen of P. malaccensis for me.