1969] 
Levi and Levi — Sicarius 
37 
of the particles in the eggcase and the sand can be seen in Figs. 3 and 
4 - 
The first eggcase had a hole near the top rim on the morning of 16 
August, 1968, more than four months after its construction (Fig. 11). 
The intervening summer had been unusually hot with many days over 
30° C. There were 2 young on the sand and during the course of 
the day one after another climbed sideways out of the hole, jumped 
to the sand (Fig. 12-14) and shortly after, buried themselves using 
the same motions as the adults (Reiskind, 1966). In an attempt to 
photograph the slow exodus of the young, the eggcase was carefully 
broken off, and placed on the sand. The egg case broke off cleanly, 
but since it did not have a back ? some young spilled out and others 
left rapidly, one after another, through the tiny hole. Several that 
left in a hurry still had their molted skins clinging to the abdomen 
Fig. 9. A seta removed showing the branches to which dust particles 
cling. The seta is about 1 mm long; the section shown is about 0.5 mm long, 
photographed with phase microscopy. 
Fig. 10. A portion of the basal disc of the eggcase. Only very few 
threads are used to hold the sand together. 
