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JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



been the cause of much confusion as Is evidenced by the number of 

 times It has been described as a new species. This confusion has 

 been largely due to the peculiar body structure which has made its 

 classification somewhat difficult. 



Fig. 4 — Photograph of manzanita branch showing the galls on the leaves made by the 

 manzanita leaf-gall aphis, Phyllaphis coweni (Cockerell). Natural size. 

 (Original.) 



Because of Its abundance throughout the state and the many In- 

 quiries received regarding It a description In a local publication will 

 undoubtedly be welcomed. 



Stem Mother 

 (Fig. 5) 

 During the late summer and fall of the year the young leaf galls 

 appear In great numbers upon the manzanita bushes as a result 



