PIRATE XI: 
fioyal Physical Socrety, Edinburgh. 
Vol. XX. 
Pine Bark, showing winter-feeding 
The portions 
ack have been eaten away. 
Scots 
galleries of Hylastes palliatus, adult. 
coloured bl 
Rie 26. 
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unshaded 
The 
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h 
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indicate 
areas 
portions, 
(From 
THe GALLERIES oF Hy Lasrtss. 
