The cephalothorax of Z. sexpunctatus is bronze to black in color . Like all Zygoballus spiders , the cephalothorax is box @-@ like in shape , being widest at the posterior lateral eyes . Numerous white or pale blue scales cover the clypeus ( " face " ) and chelicerae . This covering extend around the sides of the carapace , ending beyond the posterior median eyes . In males , the labium is two @-@ fifths as long as the maxillae , and as wide as it is long . The chelicerae of males are greatly enlarged and obliquely oriented , with each chelicera having a prominent inner tooth and a long , curved fang .