488 



SIE JOHK LUB130CK ON ANTS, liBES, AND WASPS. 



Again, ou the 22nd Oct. I placed a few larvae of F. flava in a 

 glass, which I kept continually replenished, which was suspended 

 g of an inch above the surface of the frame containing their nest, 

 but only connected with it by tapes 5 feet long. I then, at 6.30, 

 put a F. nigra to the larvse ; she took one and tried hard to reach 

 down, but could not do so, and would not jump ; so I coaxed her 

 round the tapes. She went into the nest, deposited her larva, and 

 immediately came out again. I put her back on the larvas at 7.15 ; 

 she took one, and again tried hard, but ineffectually, to reach 

 down. I therefore again coaxed her round. She went into the 

 nest, deposited her larva, and came out again directly as before. 

 I put her back on the larvae at 7.35, when the same thing hap- 

 pened again. She got back to the nest at 7.40, and immediately 

 came out again. This time she found her way round the string, 

 with some help from me, and reached the larvae at 7.50. I helped 

 her home for the last time. The next journey she found her way 

 without assistance, and reached the larvae at 8.26. After this she 

 returned as follows, viz. : — 



At 8.50 



9. 



9.10 



9.17 



9.28 



I now made the length of the journey round the tapes 

 This puzzled her a little at first. 

 She returned as follows : — 



10 feet. 



9.41 



9.55 



10. 8 



10.16 



10.26 



10.35 

 10.44 

 10.55 

 II. 6 

 11.14 with a friend. 



I now made the length 16 feet. 

 She returned at 11.34 

 12.14 



12.31 



12.50 



1.10 



1.30 



12'20 two strangers found 

 the larvas. 



