628 Wisconsin Academy of Sciences , Arts, a/nd Letters . 
l 
Hyllus pulcherrimus sp. nov. 
In this species the first legs are iridescent blue with white 
scales. The male has the abdomen metallic green, while in the 
female it is marked with red, green, black and white. 
Length, $ 11 mm., $ 14.5 mm. Legs, $ 1432, first pair very 
much longer than the others, through the elongation of the 
femur, tibia and metatarsus; $ 1432. 
In all of our specimens the cephalothorax is rubbed. The 
eye-region is iridescent blue. The sides have wide white bands, 
not meeting behind, narrowing in front, and stopping in a 
line with the second row of eyes. One specimen has a central 
white band on the thoracic part and some white hairs on the 
eye-region. Another has some green scales near the dorsal 
eyes. In the male the abdomen is brilliant metallic green, 
with some whitish bands low on the sides. The legs are irides¬ 
cent blue with patches of white scales, those on the upper sur¬ 
face arranged in a slender longitudinal line. The joints of the 
first are much elongated, and the tarsus is as stout as the meta¬ 
tarsus. There is a black and white fringe which begins with 
some thin hairs under the patella, grows heavier under the 
tibia, is thickest and longest under the metatarsus, and which 
extends, though much diminished, to the end of the tarsus. The 
palpi are bronze-colored, with longitudinal lines of white scales. 
The falces are stout, vertical and parallel. They are irides¬ 
cent, with white hairs. In the female the abdomen has an 
elaborate pattern. Around the front end and passing on to the 
sides is a white band. Parallel with this, but higher up on 
each side, is a short white band edged with velvety black, which 
ends in a rounded knob, and further back, in a line with this, 
are two white spots. Just back of the white basal band is a 
curved band of glistening green scales which runs backward 
and ends in a point on each side, and down the middle of the 
back is a band of the same green scales which is edged with 
white bands or spots. The spaces around these markings are 
filled in with rich dark red hairs. The legs are like those of 
the male, excepting that the first pair is not elongated. The 
