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SUPPLEMENT 
the branch, but remained constantly on her cocoon, placing 
it under her breast. The Thomisus citratus , of which we 
have spoken above, bends a willow leaf in two, and fills its 
interior capacity with a web of white silk, in the midst of 
which it encloses its cocoon, which is oval, and about the 
size of a cherry stone. The leaf is then closed on all sides 
by a web similar to that of the interior, strong, and tolerably 
thick. The female places herself at its external surface, 
w atches assiduously over her depot, and never lets it go, even 
when an attempt is made to drive her from it. Other species 
place their cocoons in the clefts of old stakes, &c. The eggs 
of the thomisi are round, more or less yellow, and forty or fifty 
in number in some cocoons, a hundred in others ; they are 
not coherent. The young are born in June or July. To 
pass the winter, they, as w ell as their mothers, conceal them- 
selves under heaps of dry leaves, under different bodies, and 
sometimes even in the nests of small birds. They re-appear 
in the earliest fine days of spring. When the thomisi are 
seized, they contract their feet towards the body, and roll 
themselves into a ball, as do some other species of araneides. 
The Lycos^e remain almost continually on the ground, 
wdiere they run very fast ; the holes which they find there, or 
those which they make, and enlarge as they grow older, pre- 
venting them from tumbling in, by strengthening the interior 
walls with a w r eb of silk, serve them as an abode. The Lycosa 
perita raises, above the hole which she inhabits, a small 
cylindrical tube, formed of earth. Some others establish 
themselves in cavities and clefts of w r alls. The species Alio - 
droma even constructs a tube there, composed of a fine w eb, 
covered at the exterior with parcels of earth or sand, a few 
lines in length ; it closes it at the time of laying. Placed 
near the entrance of their dwellings, they there w^atch their 
prey. It is there also, or at least in similar retreats, that 
they hybernate. The tarantula , according to Olivier, takes 
