HARVESTING ANTS. 179 



order to intimidate their enemies, tliongli Cremato- 

 gaster is the only one which really possesses a sting. 



Camponotus sylvatica has tlie same long legs and 

 slender body as Formica cursor, and is of about the 

 same size ; the workers, which are of a dark brown 

 colour, measuring about 3J lines in length. 



Perhaps it may be well, in concluding these re- 

 marks on Harvesting Ants, to call attention to the 

 principal questions which still await solution. The 

 first is one which any observer who travels in Central 

 Europe during the summer may help to solve. 



1. Do any ants collect and store seed in Switzer- 

 land, German}^ North France, England, or indeed in 

 any of the colder parts of the world ? 



2. What are the habits of Atta structor and A. 

 harhara when living, as they are known to do, in 

 {Switzerland, Germany, and Northern France ? 



3. How do the ants contrive to preserve the seeds 

 in their granaries free from germination and decay ? 



4. How are the seed-stores of tropical ants dis- 

 posed below ground, and of what do they consist ? 



5. Do harvesting ants exist in the southern states 

 of North America, in Australia, New Zealand, or at 

 the Cape ? 



