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The above indefatigable labourer in natural history in one of 
his communications states, that in Georgia these flies are termed 
the Rabbit Flies, as they infest the hares and rabbits of that 
country. “ A rabbit being catched,” he says, “ I observed 
creeping out of the skin a worm, (see fig. 24,) which being full 
fed, went into the ground, the 2nd of August. It feeds between 
the skin and the flesh, seldom more than two at one time ; it 
changed into chrysalis (see fig. 25,) and the fly appeared the 13th 
of the September following, by pushing out a kind of door, (see 
fig. 26.) The skin of the chrysalis was thick, and hard as wood. 
The fly when it came out had a kind of bladder to its 
mouth, &cAs the face of most flies on their issuing from the 
chrysalis is so inflated, there is nothing singular in this ; that all 
which appears to be interesting in this communication is con¬ 
tained in the above extract. 
I described one of these singular flies, the Cuniculi, in my 
paper sent formerly to the Linnean Society, and ventured to 
suggest, whether it might not be possible that these immense flies 
have formerly belonged to some of those large animals whose 
existence is no longer known, but whose bones are from time to 
time discovered in the earth in various parts of the globe, and 
that on their destruction they resorted to these small animals as 
a substitute of necessity. 
We may remark in concluding this brief account of them, that 
if these insects should ever be brought to the aids of veterinary, 
or other medicine, their effects would be much more powerful 
than those of the Oestri, from their magnitude and roughness. 
For distinction I have conferred on them the generic name of 
'Cuterebra . 
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