Vol.1] 



Essig. — Aphididac of California 



317 



HOST PLANTS, LOCALITY, DATES AND COLLECTOR 

 A native columbine, Aqitilcgia fruncafa F. & ]\I., cultivated 

 in the botanical garden on the campus, appears to be the pre- 

 ferred food plant, though a few specimens were found through- 

 out the season on a nearby species, A. chrusantha Gray. The 

 small tender shoots and buds are invariably infested and often 

 the plants are considerably injured by the attacks. The species 

 passes the entire year on the columbine, going as far down 



Fig. 9. Myzus oquiJegiae, n. sp. Winyed viviparous female. A, dorsal 

 aspect; B, head showing frontal tubercles; C, cornicle; D, cauda; E, 

 tarsus; F G, antenna. (Original.) 



around the crown as possible during the winter. The specimens 

 described were collected by the writer on June 27 and July 8, 

 1916. It was first noticed by the writer in 1914:. 



G. 0. Shinji, a stucient, tells me that he lias taken this 

 species on a wild columbine in ]\Iarin County, but I have not seen 

 his material to verify the same. 



Aphis cari, n. sp. 



A small plant louse occurring in compact colonies on the 

 stems of the common sweet or wild anise, Carum kelloggii Gray, 



