SIE JOHN LUBBOCK ON ANTS, BEES, AND WASPS. 509 



Eeturning at 6.28, she left at 6.30 

 6.34 „ 6.36 



6.41 „ 6.43 



This was her last visit for the evening, making no less than ninety- 

 four visits in the day, during which time only two other wasps 

 found the honey, though it was lying exposed on a table at an 

 open window. The following morning she came at 6.18 and made 

 twenty visits up to 8.18, after which I did not record them. 

 During this time no stranger came. 



No doubt, however, if a wasp is put to honey in an exposed 

 place, other wasps gradually find their way to it. To determine, 

 if possible, whether they were purposely brought, I tried the fol- 

 lowing experiment. On the 20th of September I marked a wasp 

 and put her to some honey, which she visited assiduously. The 

 following morning I opened my window at 6, and she made her 

 first visit at 6.27, the temperature being 61° Pahr. I then placed 

 the honey in a box communicating with the outside by an india- 

 rubber tube 6 inches long and 5 inch in diameter. The wasp, 

 however, soon got accustomed to it, and went in and out without 

 much loss of time. The 22nd was finer ; and when I opened my 

 window at 6 in the morning, she was already waiting outside, the 

 temperature being 61°. The 23rd was rather colder, and she came 

 first at 6.20, the temperature being 61°. 



I was not at home during these days ; but, as far as I could 

 judge from watching in the mornings and evenings, no other wasp 

 found the honey. On the 24th I had a holiday and timed her as 

 follows. It was rather colder than the preceding days, and she 

 did not come till 6.40, when the temperature was 58°. She re- 

 turned as follows : — 



