persimilis:frontal knob big,hemisphere in shape,about 0μm in diameter,the frontal edge of the telopodite of clasper arcpersimilis额结节大,半圆形,直径约 0μm,抱持器端节前沿呈弧形。
tnuisiana: frontal knob big,subconical in shape,about 0μm in height,the frontal edge of the telopodite of clasper angletunisiana额结节大,圆锥形,高 0μm,抱持器端节前沿呈拐角突起。