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ATTID/E OF THE UNITED STATES. 
1883 
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large as the lateral eyes. The clypeus is two-thirds as wide as the 
middle eyes, vertical, covered with short red and long white hairs. 
The palpus is brownish, with black and white hairs. The tibia is 
very short, bearing no apophysis ; the tarsus is cut obliquely at the 
extremity ; the bulb is simple. 
The falces are stout, vertical, slightly longer than the. face; they 
are covered with white hairs. 
The maxill;e and lip are dark brown. The maxilla} are rather 
squarely truncated, their inner edges slanting to the lip, which is half 
as long as the maxilla}, and pointed. 
The sternum is dark brown, covered, as are the surrounding thighs, 
with white hairs. The anterior thighs are separated bv more than 
the width of the lip at the base. 
The relative length of the legs is 4,3, 1 , 2 . The lirst and second 
pairs are a little stouter than the third and fourth. The lirst leg has 
the femur much enlarged on the under side, narrowing at the ex- 
tremity, and the tibia with its extremity much wider than the proxi- 
mal end of the metatarsus. In color the legs are brownish red, with 
much long whitish hair. There are femoral, tibial, and metatarsal 
spines on the four pairs. 
The abdomen is light reddish brown, and is encircled by a white 
band. Near the apex two short transverse, parallel white bars, on 
each side, extend from the encircling band toward the middle of the 
abdomen; at about the middle point of the dorsum is a large white 
spot ; and near the base are two small indistinct white spots formed 
by a few short hairs. 
The venter is covered with whitish hairs, but has a central, longi- 
tudinal, darker band. 
Habitat, Iowa. 
II. Attus aestivalis, new. 
(Pluto I, Figures 2 to 2c.) 
MALE— Length, 4.8 mm.; width of abdomen, 1.4 mm.; length of ceph.th., 2.1 mm.; 
width of ceph.th., 1.5 mm. 
Legs. 
Fern. 
Pat. 
Tib. 
Metat. 
Tar. 
Total. 
1. 
1.2 
.8 
1.1 
.6 
.4 
4.1 
2. 
1. 
.6 
.7 
.4 
.3 
3. 
3. 
1. 
.5 
.4 
.4 
.3 
2.6 
4. 
1.3 
.8 
.9 
.5 
.4 
3.0 
The cephalothorax is low ; the thoracic part is longer than the 
cephalic ; the color is bright rufous, covered with short white hairs: 
when these hairs are rubbed oil' there are seen two black spots in the 
middle of the eye-region, and a black line on each side extending from 
the dorsal to the lateral eye. 
The quadrangle of the eyes is wider than long, and not wider be- 
hind. The dorsal is as large as the lateral eye, and is situated higher 
