HOST INDEX TO CALIFORNIA PLANT LICE, II 



(APHIDIDiE) 



E. O. ESSIG 



SECRETARY STATE COMMISSION OF HORTICULTURE 



SACRAMENTO, CALIFORNIA 



The first and oi'iginal index was a compilation of all that could be found 

 in literature of ('alifornia Aphididae, as well as all of the notes made from the 

 observations of the writer, and was published in Pomona College Journal of 

 Entomology, Vol. Ill, No. 2, pp. 457-46-4, .May, 1911. 



The following includes some which were overlooked in the last article 

 and new species, all of which have not been reported heretofore: 



Alnus rhombifolia Nutt. (Alder) 

 Myzocaliis aliti (Fab.) Pass. Santa Paula, Cal., August 16, 1911. 



Artemisia californica Less. (California Sage) 

 Macrosiphinn frigidae Oestl. P. C. Jr. Ent., Ill, 548, 1911. 



Ash see Fraxinus dipetala H. & A. 



Aster sp. 

 Macrosipkuin rudhcckkic (Fitch). Santa Paula, Cal., August 15, 1911. 



Astragalus leucopis Terr. (Loco Weed) 

 Aphis medicaginis Koch. P. C. Jr. Ent., 529, 1911. 



Atriplex canescens tetraptera 



Aphis tetrapteralis Ckll. Bull. S. Cal. Acad. Sci., I, No. 4, April 1, 1902. 



Boston Fern see Nephrolepis exaltata 



Buttercup see Ranunculus californicus Benth. 



California Sage see Artemisia californica Less. 



Ceanothus hirsutus Nutt. 

 Aphis ceanothi-hirsuti Essig. P. C. Jr. Ent., Ill, 527, 1911. 



Chrysanthemum indicum L. 

 Macrosipliuin rudbeckiae (Fitch). Santa Paula, Cal., September 16, 1911. 



Citrus aurantium L. (Orange) 

 Aphis cooki Essig. Pomona, Cal., April 4, 1909. 

 Aphis gossypii Glover. Santa Paula, Cal., May 17, 1911. 

 Macrosiphinn citrifolii (Ashm.). Santa Paula, Cal., April 7, 1911. 

 Myzus persicae (Sulz.). Santa Paula, Cal., April 14, 1911. 

 Toxoptera aurantiac Koch. Santa Paula, Cal., April 3, 1911. 



Citrus limonum L. (Lemon) 

 Myzus persicae (Sulz.) Santa Paula, Cal., April 14, 1911. 

 Toxoptera aiirantiae Koch. Santa Paula, Cal., April 3, 1911. 



