456 
19. Capitophorus braggii (Gillette). 
This species was discovered on artichoke (Cynara scolymus 
L.) April 12, 1923, by Mr. Swezey, in the Manoa Valley, Oahu. 
20. Amphorophora lactucae (Kaltenbach). 
This species was first noticed by the writer in Honolulu in 
November, 1922, and has since been found widely distributed 
on Oahu. It is now very common on Sonchus oleraceus L., and 
seems to have replaced Macrosiphum solanifolii on this food 
plant. 
21. Myzus citricidus Kirkaldy. 
This species recorded and described by Kirkaldy in 1907 
(Proc Haw. Ent: Soc: “1; p.-100) occurs abundantly “on adhe 
tender growth of various species of Citrus on Oahu, and prob- 
ably on most of the other Islands. 
22. Myzus sp. 
A small species apparently belonging to the genus Mysus 
was taken by Mr. Fullaway on bamboo, in Honolulu, on two 
occasions in the winter of 1917-1918. The material preserved is 
not sufficient for the identification of the species, but indicates 
that it is different from all other aphids known to occur here. 
23. Myzus persicae (Sulzer). 
The common peach aphis of the United States and Europe 
has so far been found in Hawaii only on cabbage (Brassica | 
oleracea L.), kale (Brassica sp.), papaya (Carica papaya L.), 
and Datura stramonium L. 
24. Aulacorthum sp. 
This green Aulacorthum has the cornicles with about three 
to five rows of coarse irregular reticulations at the apex, the 
third antennal joint with about fifteen to nineteen sensoria in a 
row, the fourth joint with five or six sensoria, while the apter- 
ous phase has only about six sensoria in a row on the basal half 
of the third antennal joint. It is very close to A. rosaefolium 
(Theobald), but distinct in having much fewer sensoria on the 
third antennal joint of the apterous females. It apparently differs 
from any species of aphid so far recorded from rose-bushes. 
This species infests cultivated rose-bushes (Rosa, hybrids) 
