456 ANIMALS INTRODUCED UNAWARES 



Scotland, from Kincardineshire to Peeblesshire, for in a 

 sample of Douglas Fir Seed of the 1915 crop which I have 

 examined from the latter county, 5 1 per cent, of the seeds 

 contained a tiny circular opening through which the adult 

 Chalcids had escaped (Fig. 80, p. 455). 



Several related Chalcid Flies have been brought to Scot- 

 land, concealed in the heart of foreign seeds. I have seen 

 specimens bred from seeds of the American Spruce (Abies 

 grandis) grown in Dumfriesshire, and from seeds of the Japan- 

 ese Larch (Larix Leptolepis) imported from Japan. 



Even the fragrant rose has a pestilence gnawing at its 

 heart, and within its seed the Rose Seed Chalcid (Megastignms 

 aculeatus\ whose grubs are found in both wild and cultivated 

 varieties, has been scattered throughout Europe and North 

 America. 



