Mævia vittata.—This is a brightly colored spider about a third of an inch long and with unusually long legs for this family,—the fourth pair longest in the females and the first and fourth of equal length in the males. The female [(fig. 152)] has the legs and palpi translucent yellow or greenish white. They are marked with indistinct light gray rings and black spots at the base of the hairs and spines. The cephalothorax is dark brown between the eyes and translucent like the legs in the thoracic part. There is a fine black line in the middle and one on each side and a few gray marks radiating from the dorsal groove. The whole top of the cephalothorax is covered with greenish yellow scales mixed with gray hairs. The eyes are black, and sometimes there is a red stripe under the eyes at the sides. The abdomen is covered with scales which in the middle and at the sides are gray and mixed with black hairs. There are two longitudinal bands of light red and indistinct angular marks of the same color in the middle of the hinder half. On the under side the colors are light gray and yellow, with spots of darker gray on the abdomen.

The males are of two very different colors. One kind [(fig. 154)] resembles the female. The red bands on the abdomen are broken up into rows of spots connected with the middle angular markings. The gray and black spots on the legs and cephalothorax are larger, and there are several black marks on the front of the abdomen. The palpi are bright orange yellow, with the tibial hook black and a black spot on the inner side of each joint. The size of the black spots varies in different individuals, and so this passes into the other variety [(fig. 153)], in which the cephalothorax and abdomen are entirely black and the palpi black, except a few orange hairs on the outer side. The black cephalothorax and abdomen are covered with dark greenish shining scales. The legs in this variety are transparent white except the hairs, and on the front of the head are three tufts of long hairs which are wanting in the light-colored males.