Habronattus viridipes

Habronattus viridipes is a species of jumping spider that can be found in the eastern United States (west to Minnesota and Texas) and southern Canada.

Description
The species are brownish-black, and have a size of 5.5 mm. Its front legs are green.

Ecology
The males attract females by doing a "dance", and showing them their green front legs. If the female likes the dance, they will start to mate.