Jumping Spider Hunt 2015, Dispatch #4

Male jumping spiders are often extremely colorful, but the function of this color diversity is not well understood because spiders measured to date appear to lack true color vision. We recently discovered that Habronattus jumping spiders have evolved trichromatic color vision via the addition of red sensitivity. Now we want to find out if the appearance of this new color “channel” lead to the diversification of male colors in this animal group.