Hentz classified A. sexpunctatus in the subgeneric group Pugnatoriae , which consisted of jumping spiders whose first pair of legs was the longest , followed by the fourth pair . Later entomologists abandoned this classification , which Hentz himself admitted was " somewhat artificial " . In 1888 , with the recognition of Zygoballus as an independent genus , American arachnologists George and Elizabeth Peckham renamed the spider Zygoballus sexpunctatus . Specimens of Z. sexpunctatus are housed at the Museum of Comparative Zoology , the British Museum , the Milwaukee Public Museum , the American Museum of Natural History , and the Muséum National d 'Histoire Naturelle . No type specimens are known .