Every time we’ve seen Habronattus americanus, we’ve seen both males and females in the same location.
Photos 1, 2 and 3 show a female photographed at Blue Mountain, about 6,000 feet. In photo 1, she has prey. Note that while the female’s eyes look slightly oval, that’s because of a dark “eye shadow” under her eyes, which is common to some jumping spiders. Also note that these photos are slightly yellower because of a color cast in a sun diffuser I used.
Photos 4, 5 and 6 show females photographed at two beach locations (see Habronattus americanus male for location information). The female in photo 6 has a heleomyzid fly. (Thanks to bugguide and Dr. Matthias Buck for identification of the fly.)
Females have slightly different patterns on dorsal surface of the abdomen. I believe may be possible to identify an individual female by this pattern. I don’t know if the pattern persists between molts, however.