284 



SIE JOHN LUBBOCK ON ANTS, BEES, AND WASPS. 



the violet and purple I could not trace tliem at all. I altered 

 tlie relative positions as before. The neat contained about 50 

 larvae and pupse. 



Observation. 



1 Violet gl. 



2 



3 Fuchsine. 



4 Green. 



5 Violet gl. 



6 Fuchsine. 



7 Violet gl. 



8 Purple gl 



Purple gl Bichr. pot. Fuchsine. 



Bichr. pot. Fuchsine. Violet gl. Purple gl. 



Violet gl. Purple gl Bichr. pot. 



Bichr. pot. Violet gl. Purple gl, Fuchsine. 



Purpl. gl. Fuchsine Bichr. pot. 



Bichr. pot. Purple gl. Violet gl. 



Fuchsine Bichr. pot. Purple gl. 



Violet gl. Fuchsine Bichr. pot. 



9 Bichr. pot. Purple gl. Violet gl. Bichr. pot. 



10 Fuchsine Bichr. pot. Purpl. gl. Violet gl. 



^ J, 



^ te • 

 173 o 53 



Ah 



I then poured out half the yellow and green solutions and filled 

 them up with water, making them even lighter in colour as before. 



/^Pupte and 

 Observation. I larvae half 



12 Purple gl Violet gl. Fuchsine. Bichr. pot. J under the 



13 Bichr. pot. Purpl. gl Violet gl. Fuchsine. ' yellow and 



half under 

 ^ the green. 



Thus in every case the larvse and pupae were brought under the 

 yellow or the green. 



Aug. 20. — Over a nest of Formica fusca containing about 20 

 pupae I placed violet glass, purple glass, a weak solution of fuch- 

 sine (carmine), the same of chloride of copper (green), and of bi- 

 chromate of potash (yellow, not darker than saffron). 



1. Violet. Purple. Green. Yellow. Red. The pupae were placed under the yellow. 



green and yellow. 



yellow. 



green and yellow. 



yellow. 



Here, again, in every case the pupae were brought under the 

 yellow or the green. 



I then tried a nest of Lasiusjlamis with the purple glass, violet 

 glass, the very weak bichromate of potash, and chloride of copper 

 as before. 



