The smaller of the salticid spiders, H. amicus is uncommon on Santa Barbara sandy beaches. Their size range is 2.0mm to 3.5mm and have a range of colors, though they all tend to be cryptic with sand. They are very difficult to find due to their size and cryptic coloration. H. amicus is most common in drier kelp wracks during the months of late summer and fall. In constrat to T. californicus, their cephalothorax is wider compared to their abdomen. Their diet consists of small flies and beetles.