Zygoballus sexpunctatus is similar in appearance to Zygoballus rufipes , with whom its range overlap . The male can be distinguished from Z. rufipes by the large spot of white scales at the beginning of the thoracic slope ( which is lacking in Z. rufipes ) , and by the longitudinal division present on the bulb of the pedipalp ( Z. rufipes have a transverse division ) . The female can best be distinguished by the form of the epigyne ( the external genital structure ) .