looks like it may be a h lividum, or cobalt blue. singapore blues have longer legs much like the pookies. its aggresive so be careful (but u probally already know that). make sure the substrates about 6-8 inches deep as to they love burrowing and they like high humidity. looks like a pretty good size. if i had to guess just by the size and color looks like my female. but i have been wrong before very pretty blue colors though. remind me of the metallicas or even balfouris.