1883 
G. W. AXD E. G. PECKHAM. 
25 
The maxillse are enlarged toward the ends, and rounded. The 
lip is halt' as long as the maxilla;, and pointed. 
The sternum is truncated in front, and pointed at the posterior 
extremity, which is in front of the posterior thighs. It is covered 
with white hairs. The anterior thighs are separated by less than the 
width of the lip at the base. 
The relative length of the legs is 4, 1, 2, 3. The first pair is the 
stoutest. The femur of the first has a row of short and strong black 
hairs near the middle of -the lower border. The patella is enlarged at 
the distal end, and is covered with white hairs, separated into two 
circles by an indistinct hairless median part. The tibia is thick ; on 
the posterior half of the upper border is a ridge of short strong black 
hairs, and on the whole of the lower border a similar ridge, the hairs 
of this ridge having a length about equal to the thickness of the 
articulation ; the anterior face of the tibia is black. The metatarsus 
and tarsus are much more slender than the other articulations. The 
other legs are covered with white hairs, with paler, more or less hairless 
longitudinal lines, most marked on the posterior two pairs. There are 
very weak femoral, tibial and metatarsal spines on the first and second 
pairs. The third and fourth pairs are unarmed. The femoral joints 
of the third and fourth have some stout black hairs. 
The abdomen is slightly flattened and is in the same plane as the 
cephalothorax. It is densely covered with short white hairs, with a 
few longer, fine black hairs scattered over it. 
The venter is covered with short thick white hairs. 
The epigynum presents a large plate, wide behind, narrower and 
rounded in the front, with the opening at the posterior edge. 
Habitat, Iowa. 
Observations. This species is from the Putnam collection. 
XX. Attus pai.ustris, new. 
(.Plate III, Figures 20 to 20c.) 
MALE— Length, 5 mm.; width of abdomen, 2 mm.; length of ceph.th., 2.7 mm. ; 
width of ceph.th., 1.6 mm. 
Logs. 
Fern. 
Pat. 
Tib. Metat. 
Tar. 
Total. 
1 . 
1.3 
.9 
1 . 
.8 
.6 
4.6 
2. 
1.1 
.7 
.7 .6 
.5 
8.6 
3. 
1 . 
.4 
.5 .5 
.5 
8.4 
4. 
1.4 
.7 
1 . 
.8 
.5 
4.4 
The cephalothorax is high ; the thoracic part, is longer than t lie 
cephalic. The color is dark browif with a reddish tinge towards the 
eyes, and nearly black at the base. Three white lines Ifhgin at the 
base and run forward ; the median line ends before reaching the 
anterior eyes ; the lateral lines pass just outside the dorsal eyes and 
inside the small median eyes, and are connected by a transverse white 
4 
