Trichromatic-vision
Guides
Habronattus
Paradise Jumping Spiders
Habronattus is a genus of jumping spiders (Salticidae) comprising approximately 105 recognized species as of 2023. The genus is primarily native to North America, with highest diversity in the southwestern United States, though some species extend into Central America and above the Arctic Circle. Males are renowned for elaborate courtship displays combining visual signals—using modified third legs with spurs, colored scales, and dense hair brushes—with complex vibratory (acoustic) signals transmitted through the substrate. These multimodal displays have been described as among the most elaborate of any terrestrial invertebrate. Females are typically cryptic in coloration, while males exhibit bright, species-specific ornamentation.
Habronattus pyrrithrix
Habronattus pyrrithrix is a small jumping spider in the family Salticidae, native to the southwestern United States and western Mexico. Males display striking sexual dimorphism with bright red facial coloration and green legs used in complex multimodal courtship displays, while females are larger with cryptic brown and grey coloration. The species exhibits trichromatic vision and uses color cues when foraging, actively avoiding red and yellow prey that may signal chemical defenses. Males employ visual, vibratory, and seismic signals during courtship to reduce female aggression and cannibalism risk.