e the Three-toothed Osmia, makes her
nests in the brambles; in the second place, from the wallets of
_Megachile sericans_, made with little round disks of the leaves of
the common acacia; in the third place, from the cells which _Anthidium
bellicosum_[11] builds with partitions of resin in the shell of a dead
Snail. This last Anthidium is the victim also of the Unarmed Zonitis.
Thus we have two closely-related exploiters for the same victim.

[Footnote 10: Cf. _Bramble-bees and Others_: chaps. i., iii. and
x.--_Translator's Note_.]

[Footnote 11: For the Cotton-bee, Leaf-cutter and Resin-bee mentioned,
cf. _Bramble-bees and Others_: _passim_.--_Translator's Note_.]

During the last fortnight of July, I witness the emergence of the
Burnt Zonitis from the pseudochrysalis. The latter is cylindrical,
slightly curved and rounded at both ends. It is closely wrapped in the
cast skin of the secondary larva, a skin consisting of a diaphanous
bag, without any outlet, with running along each side a white tracheal
thread which connects the various stigmatic apertures. I easily
recognize the seven abdominal stigmata; they are round and diminish
slightly in width from front to back. I also detect the thoracic
stigma. Lastly, I perceive the legs, which are quite small, with weak
claws, incapable of supporting the creature. Of the mouth-parts I see
plainly only the mandibles, which are short, weak and brown. In short,
the secondary larva was soft, white, big-bellied, blind, with
rudimentary legs. Similar results were furnished by the shed skin of
the secondary larva of _Zonitis mutica_, consisting, like the other,
of a bag without an opening, fitting closely over the pseudochrysalis.

Let us continue our examination of the relics of the Burnt Zonitis.
The pseudochrysalis is red, the colour of a cough-lozenge. It remains
intact after opening, except in front, where the adult insect has
emerged. In shape it is a cylindrical bag, with firm, elastic walls.
The segmentation is plainly visible. The magnifying-glass shows the
fine star-shaped dots already observed in the Unarmed Zonitis. The
stigmatic apertures have a projecting, dark-red rim. They are all,
even the last, clearly marked. The signs of the legs are mere studs,
hardly protruding, a little darker than the rest of the skin. The
cephalic mask is reduced to a few mouldings which are not easy to
distinguish.

At the bottom of this pseudochrysalidal sheath I find a little white