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 



GROUP OF SOLITARY BEES. 



1, 2, Hairy-legged bee {Dasypoda hirtipes) ; 3, 4, Shenek's earth-bee (Andrena schencki) ; 5, 6, Grey -haired 

 e irth-bee (Andrena cineraria); 7, 8, Brown earth-bee (.4. fulvicrus); 9, 10, Large burrowing bee (Hylasus 

 (/ -andis). A male and female of each is figured. (All of nat. size.) 



i lade from fragments of leaves nipped out by the strong jaws of the 



These cells may be placed either in the holes of trees, in clefts and crannies 



\ 'alls, or in specially con- 



s;ructed burrows in the 



ground. Among the leaves 



most generally employed 



a -e those of the poplar, 



h Drnbeam, privet, poppy, 



a id rose. The mode in 



v hich these insects work, 



a id the structure of their 



c< lis and burrows are 



e ihibited in the illustra- 



ti m. Yet another type 



o building is exemplified 



b - the carpenter - bees 



(„ 'ylocopa), which are 



k longst the finest mem- 



b rs of the entire family. 



insects, 

 of old 



MASON-BEE. 



1, Nest with bee emerging and larva in an open cell ; 2, Male ; 3, Females 

 fighting. (Nat. size.) 



