The Young Queens 
instance that will not take us too far from 
our bees, I know of no instance more 
striking’ than that of the triongulins of the 
Sitaris colletes. And it will be seen that, 
in many details, this story is less foreign 
to the history of man than might perhaps 
be imagined. 
These triongulins are the primary larve 
of a parasite proper to a wild, obtuse- 
tongued, solitary bee, the Colletes, which 
builds its nest in subterranean galleries. 
It is their habit to lie in wait for the bee 
at the approach to these galleries; and 
then, to the number of three, four, five, 
or often of more, they will leap on her 
back, and bury themselves in her hair. 
Were the struggle of the weak against the 
strong to take place at this moment there 
would be no more to be said, and all would 
pass in accordance with universal law. 
But, for a reason we know not, their in- 
stinct requires, and nature has consequently 
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