458 
28. Macrosiphoniella sanborni (Gillette). 
This aphid occurs on florists’ Chrysanthemum (Chrysanthe- 
mum hortorum) in Honolulu, and was first recorded by Full- 
away in 1910. 
29. Macrosiphum rosae (Linnaeus). 
The common rose aphid was recorded by Fullaway from 
Honolulu, Oahu, and from Mana and Puuopelu, Hawaii (2000 
to 3500 feet). I have found but one specimen of it in Hono- 
lulu, but have seen it abundant on cultivated roses at Mountain 
View and Kilauea, Hawaii. 
30. Macrosiphum solanifolii (Ashmead). 
Macrosiphum trifolii Fullaway, 1910, Ann. Rep. Haw. Agric. Exp. 
Sta. for 1909, p. 23 (not Pergande, 1904). 
For the determination of this species I am indebted to Mr. 
A. C. Baker, with whom I agree after comparing Hawaiian 
specimens with a long series collected in Texas, Utah, and Cali- 
fornia, on potato, rose, alfalfa, Sonchus, Lactuca scariola L., 
Malva parviflora L., Citrus, Erodium cicutarium L’Herit., and 
cultivated strawberry. I believe that Macrosiphum creelii Davis, 
described from specimens taken on alfalfa, is a synonym. 
This species was formerly abundant in the lowlands on Son- 
chus oleraceus L., but I have been unable to find it during the 
last two years. On one occasion I discovered a small but vig- 
orous colony on Portulaca oleracea L., and in January and Feb- 
ruary, 1920, I found small colonies on corn (Zea mays L.) in 
Manoa Valley, located mostly on the basal part of the stalk and 
on the lower leaves of vigorously growing plants. 
31. Neotoxoptera violae (Pergande). 
A species, believed by Fullaway to be the one described by 
Pergande, was taken by him on Tantalus, Oahu, on cultivated 
violets (Viola odorata L.). It has not been found since. 
32. Idiopterus nephrolepidis Davis. 
Macrosiphum kirkaldyi Fullaway, 1910, Ann. Rep. Haw. Agric. 
Exp. Sta. for 1909, p. 22, figs. 1-2. 
Fullawayella kirkaldyi Del Guercio, 1911, Redia, 7, p. 462. 
Nephrolepidis is a common species in the mountains back of 
Honolulu on Acrostichum reticulatum Kaulf., Polypodium lin- 
