PecMiam—Revision of the Attidce of North America . 359 
each other, tufts and even curls. Some males have iridescent 
plates under the femora which can he seen only when the legs 
are raised vertically upward. 
Not yet have we exhausted the ingenuity of nature in adorn¬ 
ing this family, for in Pellenes the ornamentation becomes still 
more fanciful and extraordinary. The forms with which we 
are already familiar are repeated and exaggerated as in the 
face of tarsalis, the palpus of americanus, and the pedicillate 
fringes of brunneus and clypeatus. In oregonense the tibia is 
as wide as long, and, as in picata, one side is iridescent. In 
this case, however, the color is on the inner, not the upper sur¬ 
face, and when the spider makes his display he does not, like 
picata, call attention to the front face, but bowing his legs, pre¬ 
sents to view the side of the joint. 
P. oregonense, displaying iridescent side of enlarged tibia. 
So far everything has been lavished upon the front legs. In 
this rush of decoration all has been crowded on to the pair that 
the female cannot help seeing when the male stands before her, 
but in Pellenes other possibilities have been developed and it has 
been shown that after one pair of legs has been diverted from its 
normal use of supporting the body, those remaining can be so 
disposed as to display excrescences upon the third pair. Pale 
apophyses dotted with black, on the patella, spine-like pro¬ 
cesses on the femur, enlargement of both patella and femur in 
the same leg appear, along with the habit of hunching the third 
legs over the back so that these ornaments may be in full view. 
Our viridipes found it an arduous task to balance himself on 
only half the usual number of feet and no Pellenes that we have 
seen trying to look his best under these conditions seemed to 
