EXPE-EIMENTS ON A QUEEN ANT. 197 



opaque porcelain, one of violet, and one of red glass, 

 all of the same size. The result is shown below. 



Obs. 



, ^ . , , , . ( pupae were taken ■ o f under 



1. Queen went under red glass o { \^^^^^^ ^^^ ^j^^^^ 2 | ^^^^^^^-^ 



2. „ porcelain „ 7 „ 



3. „ red glass „ 7 ,, 



4. „ ,,6 „ 2 



5. „ „ 6 „ 2 



6. „ „ 3 „ 7 



7. „ „ 10 „ 



8. „ „ i „ 6 



9. „ „ 1 „ 



10. „ porcelain „ 10 „ 



11. „ red glassi 10 „ „ 



12. „ porcelain 4 „ 6 „ 



13. „ red glass 7 „ 3 „ 



14. „ porcelain 4 „ 6 „ 



15. „ red glass 4 „ 6 „ 



16. „ porcelain „ 10 „ 



17. „ red glass 10 „ 



18. „ „ 8 „ 2 



19. „ porcelain 7 „ 3 „ 



20. „ „ 1 „ 9 „ 



Total 90 88 



Obviously, therefore, the ants showed no marked 

 preference for the porcelain. On one, but only on one 

 occasion (Obs. 9), most of the pupse were carried under 

 the violet glass, but generally it was quite neglected. 



I now tried a similar experiment with porcelain and 

 yellow glass. 



Obs. 



, „ , , , . o ( pupse were taken 9 < under 



1 . Queen went under porcelain f, { ^ ^^^^^^. ^^jj^^ 2 | ^^^^^^^^ 



2. „ „ 2 „ 8 



3. ., „ 8 „ 2 „ 



