2G8 
FOREIGN BEES. 
The larvae and pupae do not differ materially from 
those of other bees. When the former assumes the 
Dupa it is placed in its cell with the head downwards — 
a very wise precaution, for thus it is prevented, wheu 
it has attained its perfect state, and is eager to emerge 
into day, from making its way out upwards, and 
disturbing the tenants of the superincumbent cells, 
who being of later date each than its neighbour below 
6tairs, are not yet quite ready to go into public." 
XYLOCOPA TEREDO. 
Plate XXI. Fig. 1, Male, — Fig. 2, Female. 
Xylocopa Teredo, Linn. Trans. XIV. p. 314. 
For a knowledge of the habits and sexual distinctions 
of this species we are indebted to the assiduous and 
indefatigable Lansdowne Guilding, whose account 
was published in the fourteenth volume of the Lin- 
mean Society’s Transactions. It does not differ much 
in its economy from the species last described. It 
takes up its abode in dead trunks of trees, piercing 
into the interior in a horizontal direction, and then 
forming longitudinal excavations. Its little nests are 
very numerous, and placed without any order. Be- 
ginning at the bottom, the female fills each little ceil 
with pollen, mixed with honey, and deposits an egg 
in it. The larva which proceeds from this egg is 
apodal, naked, and whitish, much attenuated towards 
the head, which is very small, and of an ochreous 
yellow colour ; the mandibles rust-red, the spiracles 
likewise red. The pupa is ochre-yellow, the thorax 
anteriorly armed with two spines. 
The dissimilarity of the sexes is so great, as to 
