210 AUSTRALASIAN 
intended for mating purposes may be restrained from flying. 
These guards (Fig. 96) are made of perforated zinc, and fitted 
Fig. 96,_JONES’S ENTRANCE GUARD. 
so as to cover the entrance to the hive. The perforations, 
being 3, of an inch wide, are large enough for the worker bees 
to pass through, but too small for the drones. Another kind 
of entrance guard is shown below. It is an invention of Mr. 
Alley’s, and answers the double purpose of a trap as well as an 
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SSS 
Fig, 97, ALLEY’S DRONE EXCLUDER, DRONE AND QUEEN TRAP. 
excluder. This guard has an upper compartment, into which 
lead two wire-cloth cones, seen through the side openings in 
the figure. The drones, after failing to make their way out 
through the perforated zine, finally force their way up through 
the cones ; but not being able to return the same way they 
become prisoners in the upper compartment. Should workers 
go up through the cones, they can still make their way out 
through the perforated zinc on top. From various conflicting 
reports which have come under my notice, I am inclined to 
doubt the efficacy of all these guards, as they are now made 
for the objects intended. ; 
