forms under which the Sitares possess all the characteristics of
larvae.

Although the Sitaris, on assuming the form of the pseudochrysalis, is
transfigured outwardly to the point of baffling the science of
entomological phases, this is not so inwardly. I have at every season
of the year examined the viscera of the pseudochrysalids, which
generally remain stationary for a whole year, and I have never
observed other forms among their organs than those which we find in
the secondary larva. The nervous system has undergone no change. The
digestive apparatus is absolutely void and, because of its emptiness,
appears only as a thin cord, sunk, lost amid the adipose sacs. The
stercoral intestine has more substance; its outlines are better
defined. The four gall-bladders are always perfectly distinct. The
adipose tissue is more abundant than ever: it forms by itself the
whole contents of the pseudochrysalis, for in the matter of volume the
insignificant threads of the nervous system and the digestive
apparatus count for nothing. It is the reserve upon which life must
draw for its future labours.

A few Sitares remain hardly a month in the pseudochrysalis stage. The
other phases are achieved in the course of August; and at the
beginning of September the insect attains the perfect state. But as a
rule the development is slower; the pseudochrysalis goes through the
winter; and it is not, at the earliest, until June in the second year
that the final transformations take place. Let us pass in silence over
this long period of repose, during which the Sitaris, in the form of a
pseudochrysalis, slumbers at the bottom of its cell, in a sleep as
lethargic as that of a germ in its egg, and come to the months of June
and July in the following year, the period of what we might call a
second hatching.

The pseudochrysalis is still enclosed in the delicate pouch formed of
the skin of the secondary larva. Outside, nothing fresh has happened;
but important changes have taken place inside. I have said that the
pseudochrysalis displayed an upper surface arched like a hog's back
and a lower surface at first flat and then more and more concave. The
sides of the double inclined plane of the upper or dorsal surface also
share in this depression occasioned by the evaporation of the fluid
constituents; and a time comes when these sides are so depressed that
a section of the pseudochrysalis through a plane perpendicular to its
axis would be represen