Clubiona rubra.—Smaller than the other species, a sixth to a fifth of an inch long. Cephalothorax light yellow brown, darker toward the front. Abdomen pale in front and darkened with brownish red at the sides and behind and along the middle of the back. The hind middle eyes are nearly twice as far apart as they are from the lateral eyes. The fourth legs are longest in both sexes, and there is little difference in the length of the legs of the two sexes. The mandibles of the female are but little swelled in front, not much more than those of the male, and the male mandibles [(fig. 58)] are only a little narrowed at the ends. The male palpi [(fig. 59)] have the tibia very much widened on the outer side, with a short tooth in the middle and two larger short processes on the outer side. The palpal organ has a large dark-colored process in the middle. The epigynum is pointed behind, with a notch in the middle and two black spots under the skin toward the front of the abdomen

Clubiona ornata.—This is one of the few Clubionas that have markings on the abdomen. The general color is pale as usual, but the abdomen has a dark stripe in the middle, broken into spots behind and bordered by pale yellow. At the sides are oblique dark and light transverse markings. These marks are of different sizes in different individuals and connected in different ways. The length is from a third to half an inch. The abdomen is wide across the middle and more pointed behind than in most species. The front middle eyes are about as far apart as in tibialis and nearer than in rubra. The mandibles are not much swelled in front. The legs of the male are longer than those of the female, with the first pair longest, while in the female the fourth pair is longest. The male mandibles [(fig. 62)] are narrow at the end and hollowed on the inner edges as in tibialis, with a sharp ridge between the thick and the thin portions. The male palpi [(fig. 61)] have two processes on the outer side of the tibia longer than in rubra and shorter than in canadensis. The tibia is a little widened toward the end and curved outward.

Clubiona excepta.—A third of an inch long and with very distinct gray markings on the abdomen. The cephalothorax is light yellow brown, and the legs are more deeply colored with yellow than in most species. The abdomen is white, with sometimes a yellow mark on the front of the abdomen, and on the hinder half of the abdomen is a middle row of gray spots and a row of larger transverse spots on each side. The fourth legs are longest in both sexes. The male palpi have the tibia longer than usual and patella and tibia about the same length. The tibia has a small process with two teeth [(fig. 64)]. The tarsus is oval and narrow and the palpal organ small.