Peckham—Revision of the Attidce of North America. 513 
thorax, one-fourth wider than long and equally wide in front 
and behind, or a little wider in front. Front eyes in a straight 
row, the middle about twice as large as the lateral. Second row 
halfway between the others. Third row a little narrower than 
the cephalothorax. Clypeus very narrow. Falces short, ver¬ 
tical, and rather stout, with one tooth on the lower margin. 
Sternum truncated. Coxae separated by the width of the labi¬ 
um, which is a little longer than wide. First legs scarcely 
stouter than the others. Spinal armature differing with the 
species. 
The short cephalic part, the fiat upper surface, and the longi¬ 
tudinal banding bring this genus into relationship with 
Phlegra. 
MARCHENA SISSONII n. sp. 
Plate XL, fig. 9. Plate XLII, fig. 5. 
$ . Length 3-8 mm. Legs 4132, nearly equal in thickness. 
The upper surface is bright reddish-brown, banded with white. 
The cephalothorax has a central longitudinal band which reaches 
forward only to the second row of eyes, and bands occupying the 
lower halves of the sides, which pass around on to the face, and, 
narrowing toward their ends, touch the lower outer edges of the 
front middle eyes. Th© spaces between these bands and the 
lower edges of the front lateral eyes are covered with reddish 
hairs, and the hairs between the eyes are bright red, while over 
the front row is a band of white. The upright hairs on the 
cephalic plate are black. The abdomen has two longitudinal 
bands which are widely separated in front, but which unite over 
the spinnerets, and in the middle of the front end is an abbre¬ 
viated silvery line which seems to be a continuation of the mid¬ 
dle line on the cephalothorax. Under alcohol the dorsum shows 
two lines of indistinct light spots. The venter is covered with 
white hairs. The palpus is light brown with a white band on 
the inner face. The legs are light brown and almost hairless, 
the inner face of the patella, tibia and metatarsus of the first 
marked with a dark streak. The tibiae of the first and second 
