SIB JOHN LUBBOCii ON ANTS, BEES, AND WASPS. 489 



She returned at 1.46 

 1.59 

 2.10 

 2,20 



„ 2. as 



2.45 



2.52 



3.10 



3.19 



8.29 



8.40 

 ,, 3.50 I uow put between 700 and 800 



„ 4.14 larvse in the glass. 



4.31 



4.44 

 4.56 

 5. 8 



4.33 a stranger came. 



5.12 

 5.20 



0.10 



5.25 

 5.40 

 6. 6 



6.51 

 1. 

 7.11 



7.15 

 It surprised me very mucli that she preferred to go so far round 

 rather than to face so short a drop. 



In illustration of the same curious fact, I several times put 

 specimens of -F. nigra on slips of glass raised on^y one third of an 

 inch from the surface of the nest. They remained sometimes three 

 or four hours running about on the glass, and at last seemed to 

 drop off accidentally. 



Myrmica ruqinodis has the same feeling. One morning, for 

 instance, I placed one in an isolated position, but so that she 

 could escape by dropping one third of an inch. Nevertheless at 

 the same hour on the following morning she was still in captivity, 

 having remained out twenty four hours rather than let herself 

 down this little distance. 



