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,, when 

 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 

 stairs, 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. 

 FOB 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- 

 nsean 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 cell 

 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 



