ANT COMMUNITIES 



to bo A, us tested by the flute as well as by the ear 



(Fig. 1)2). 



Recently the vibration of insects' wings their 

 pteratic language has boon studied from the character 

 of the note caused thereby, the pitch determining the 





% 



I 







Fig;. 62 PTERATIC LANGUAGE 



The author, with his flute, testing the keynote of wing-strokes 

 as insects are humming over flowers 



132 



