THE APHROPHORA SPUMARIA. 



379 



naturalists and physiologists of the world. It was evident to 

 all, and in fact everybody can observe it, that perfect male and 



METAMORPHOSES OF THE CUCKOO SPIT. {Aphrophora spHinarui.) 



female Aphides, all with wings, fly about in great quantities in 

 the autumn season. A little care will prove that the eggs are 

 laid at this time on plants, and that they are covered up with 

 a sort of mucus which the female places over them to protect 



