142 Journal of Entomology and Zoology 
lighter brown with a broken yellow median line. This line extends 
from the upper margin, three-fourths of the way down on the 
cephalothorax. The dark brown abdomen is also covered with 
yellow hairs. These yellow hairs gave a grayish appearance to the 
body. The coxe of the legs and the palpi were dark brown, the 
trochanter light brown, the femur dark brown; the tibia, meta- 
tarsus and tarsus a light yellow with upper margin of each with a 
dark brown band. The legs were covered with light yellow hairs. 
The brown spinnerets were covered with dark hairs. 
The young when first emerged were a dirty gray brown in the 
legs, palpi and cephalothorax; the abdomen was a clear yellow 
brown with a distinct black triangular pattern near the apex. The 
tarsus of the legs and palpi were dark brown. Some of the spider- 
lings kept this same coloring and pattern for a month, simply grow- 
ing in size. Others in the same brood kept this same color and 
pattern for two weeks and then changed. At this time the legs 
became a clear light brown, the tarsus being also of the same color; 
the cephalothorax was the same dirty brown. There were two 
cervical grooves, one separating the head from the thorax and then 
at the joining of this groove another one started toward either side 
at the base of the cephalothorax. The abdomen was the same clear 
yellow brown, only at the base of the abdomen near the upper mar- 
gin and on either side, small patches of brown indicated the start- 
ing humps of the adult. The black triangular pattern of the one 
just described was softened to a dark brown pattern fusing into 
the color of the rest of the abdomen. It was not until the spider 
was four months old that there was any great change from this one, 
only of course, the general growth of body. The color remained 
the same except that at each moult it was darker. At the end of 
four months the humps had developed into small knobs. The 
abdomen and cephalothorax had become like the adult female, but 
the legs had not taken on the gray coloring of the adult. They 
were still a dirty brown. As both adult male and female are alike 
in coloring, both sexes of the young remained the same in coloring 
throughout their life, the female being larger in the last few moults. 
As none of the egg cases of Thomiside were kept in captivity 
all the observation on the young of this family were made from 
young collected. 
