8 
ATTIDvE OF TIIE UNITED STATES. 
1888 
The quadrangle of the eyes is wider than long, and not wider* 
behind. The dorsal eye is a little smaller than the lateral, and is placed 
a little higher, a straight line from its lower border cutting the lateral 
eye above the middle. The small median eye is near the dorsal eye, 
and is on a line with its upper edge. The anterior eyes are in a 
straight row, and are all touching. The middle are a little more than 
twice as large as the lateral eyes. The clypeus is more than half as 
wide as the middle eyes, vertical, black, with a few white hairs. 
The patella of the palpus is a little longer than the tibia, and 
equally stout. The tibia has a long curved apophysis extending about 
half the length of the tarsus. On the inner border of the tibia are 
several long hair-like spines. The tarsus is oval, truncated at the tip, 
clothed with short white hairs. The bulb occupies the posterior three- 
fourths of the tarsus. The hook is long, and is curved on the inner 
ahterior margin. There are spines on the femur, patella and tibia. 
The falces are not robust, vertical, dark testaceous, with sparse, short 
light hairs. 
The maxilla: and lip are brown, short and rounded. 
The sternum is long, oval, black or testaceous, with black and 
white hairs, particularly around the edge. The anterior thighs are 
separated by the width of the lip at the base. 
The relative length of the legs is 3, 1, 4, 2. The first and second pairs 
are slightly stouter than the third and fourth. All the legs are pale 
to the middle of the femur ; beyond this point they have alternate’ 
bands of black, and pale brown or rufous. There are spines on the 
femoral, patellary, tibial, and metatarsal joints of the four pairs, those 
on the metatarsi of the fourth extending to the base. 
The abdomen is black, with an encircling white band, and a central, 
longitudinal, rufous band, which varies in width and length, in which 
are some white marks. These marks vary, consisting sometimes of 
two short oblique lines near the base, which almost meet to form a A. 
posterior to these a A with a much wider angle, and still nearer the, 
apex two or three smaller As, all pointing forward. In other speci- 
mens there are four short, oblique, white lines, two near the base, and 
two more widely separated, posterior to the middle of the dorsum. 
In some cases the rufous band is shortened into a s|*>t, and the white 
marks are small and indistinct. The posterior part of the black portion 
of the abdomen sometimes forms three scallops, the middle one being 
the deepest, and extending to the very apex, thus dividing the encir- 
cling white band. 
The venter is black, covered with white, or white and rufous hairs. 
Habitat, Pennsylvania, Wisconsin. 
