126 THE MAIN CURRENTS OF ZOOLOGY 



stages of moults as larvae, then enter the quiescent or 

 pupa stage and emerge from the cocoons, or cases, as 

 adults. 



In reference to the fertilization of flowers insects 

 exhibit some of the most interesting relations of 

 nature. With remarkable adroitness they extract the 

 nectar of flowers, and at the same time carry pollen 

 from flower to flower, and further cross-fertilization. 

 Often there are especial adaptations in structure to 

 promote this end. 



But it is in reference to their habits that they show 

 the most extraordinary display of instinctive in- 

 telligence and complex behavior. Those forms as 

 ants, bees and social wasps living in social com- 

 munities, that are well organized as to divisions of 

 labor and concerted action, may be properly re- 

 garded as animals of dominant intelligence. 



The French entomologist J. H. Fabre (1823-1913) 

 devoted a long life to observation of insects showing 

 especial aptitude for searching out their habits. 

 He has related his observations in voluminous and 

 charming writings which reached the dimensions of 

 ten volumes under the title of Souvenirs Entomolo- 

 giques. These memoirs have been translated into 

 English and have had a wide circulation. Fabre 



