192 THE HUMBLE-BEE Vint 
surface of the ground, but I have often found it 
under the ground with a short tunnel. The queens 
appear rather late in the spring, and the colonies 
are generally among the last to break up in the 
autumn, the workers being particularly industrious 
on the August flowers. The wax is almost as light- 
coloured as that of dapfzdarius ; it is produced rather 
sparingly, and is worked into thin sheets. The 
nest has as clean and tidy an appearance as that of 
lapidarius. On the Continent there is a variety of 
sylvarum, named nigrescens, that is coloured exceed- 
ingly like derhamellus. 
Among the favourite flowers of B. sylvarum may 
be mentioned red bartsia (ZB. odontztes) and Centaurea 
1Lg7 A, 
