HYMENOPTERA 
43 
As the locks were in pretty constant use, it would appear that all the nests must 
have been built within a few days. 
The leaf-cutter bees, of which an example (Megachile centuncularis ) is figured 
on the illustration on p. 36, take their name from lining their nests with cells 
6 5 4 3 9 
7 8 12 10 
GROUP OF SOLITARY BEES. 
1, 2, Hairy-legged bee (Dasypoda hirtipes ); 3, 4, Shenck’s earth-bee (Andrena schencki ); 5, 6, Grey-haired 
earth-bee (Andrena cineraria ); 7, 8, Brown earth-bee (A. fulvicrus ); 9, 10, Large burrowing bee (Hylceus 
grandis). A male and female of each is figured. (All of nat. size.) 
made from fragments of leaves nipped out by the strong jaws of the insects. 
These cells may be placed either in the holes of trees, in clefts and crannies of old 
walls, or in specially con¬ 
structed burrows in the 
ground. Among the leaves 
most generally employed 
are those of the poplar, 
hornbeam, privet, poppy, 
and rose. The mode in 
which these insects work, 
and the structure of their 
cells and burrows are 
exhibited in the illustra¬ 
tion. Yet another type 
of building is exemplified 
by the carpenter - bees 
( Xylocopa ), which are 
amongst the finest mem¬ 
bers of the entire family. 
MASON-BEE. 
1, Nest with bee emerging and larva in an open cell; 2, Male ; 3, Females 
fighting. (Nat. size.) 
