130 Journal (if Eiiti)m()loj.'y and Z<;iil(ifiv 
of large \'ines. I hcridiii.l;L' were founil in meter boxes and barns; 
the Attida; were collected in Imperial Valley under rocks; the 
Lycosidff which were collected during the month of April, were 
fouiul ill the grass with the females carrying the egg cases. The 
young of Thomisida" were found, no eggs ha\ ing been collected. 
The shape of the egg cases of the sc\eral species studied dif- 
fered materially. Those of Pciicctia viridaus are, as Comstock 
describes it, "hemispherical in outline with small projecting tufts." 
The egg sac of Ai-anea gemma is a light brown "loose flocculent 
mass of silk enclosing the ball of eggs." The egg case of most ol 
the Thomisids, Comstock describes as being "lenticular in form' 
and are usually formed of two equal valves united at the bortler 
which presents a little circular fringe. The egg case of Philudro 
mils is made up of two disks \\'hich are fastened closely to the bark 
of the trees and may lie more than lenticular in shape. In the SLib 
family Misiiiiu'iiiii.r the egg sac is sometimes free and sometimes 
suspended like a hammock in a retreat formed of lea\es rolled or 
drawn together. In most cases after the egg sac is made, the fe- 
male stops her wandering habits in order to watch it. The egg sac 
of 1 Aitradciliis iiuicliiiis is made u\i of a roimd closely woven silk 
ball, hard on the exterior and soft on the interior. Dust soon col- 
lects on the egg sac which gi\es it a dirty white color. They are 
suspended from the web by a few loose threads. The Lvcosidae 
tie their chililren to their apron strings. The females were found 
in great abundance in the early spring holding the flat circular egg 
case firmly with their mandibles. These cases were held up off 
the ground when the female moved anci were dropped if she was 
disturbed. In the confinetl specimens the female upon being dis- 
turbed woulil drop her bundle, but as soon as the disturbance was 
o\er she would pick up the case again. The Attidjp were all col- 
lected from a \-allev with a warm climate and seemed to resent the 
change when they were placed in the cooler atmosphere of the 
laboratory. Their egg cases were of a \ery fme soft white silk and 
were attached to the under side of a rock, using the rock as one 
side and building the nest around that side. One female laid her 
eggs in capti\ity. The case was the same as those on the rocks 
but one side of the glass was used as a foundation. As there were 
