Hey conipto/Bill, I am replying to your observation on the p.regalis thread about these T's being distant relatives( p.cambridei and p.regalis). I agree, the commonality is not obvious. One thing that may have puzzled the arachnologists who described P.cambridei is that it is common for all the T's in this hemisphere to have urticating hair and P.cambridgei does not . Also no T's in p.regalis hemisphere have urticating hairs. But there is probably a similarity in the genitalia of these species; a common way for arachnologists to i.d. closely related species or find a not so obvious similarity in a species.