120 
figured for obfusca but is as shown in Figure 
28. 
I am not prepared to assume a degree of 
error in the work of Ferris and Klyver which 
would allow ignoring of these differences, 
rather minor though they be, for I have found 
their paper to be very accurate. There are, of 
course, possibly other differences which may 
be found if the unique type of obfusca is ever 
located for comparison or if future collecting 
produces additional specimens, especially 
males. It will be less confusing in this circum- 
stance, I believe, to establish a probable 
synonym than to designate these specimens 
as obfusca. 
Four of the specimens taken on Takaka 
Hill were taken from a single, rather isolated 
plant of Hebe angustifolia at the edge of a small 
area of bush on January 8. On January 13 I 
returned to this plant and obtained two more 
specimens. Later in the week I captured two 
more from the same species of plant on 
Whangamoa Saddle, where I had gone to 
search for them. In both localities I swept all 
the surrounding plants in search of additional 
specimens, without success. In dissecting 
several of the females, I found that they were 
gravid; in one specimen an egg was lying in 
the ovipositor. I think it probable, therefore, 
that Hebe angustifolia is a host. The series 
taken southeast of Taupo was swept from a 
tangled mixture of shrubs which included a 
species of Hebe which may be angustifolia or 
salicifolia or something else. 
Trioza colorata (Ferris and Klyver) 
Fig. 29 
1932 Powellia colorata Ferris and Klyver, New 
Zeal. Inst., Trans. 63: 38, 47, pis. 9, H. 
Length to tip of folded wings 2.5-2.75 mm. 
One female taken at Arthur’s Pass is iden- 
tical with the one described by Ferris and 
Klyver. Another taken with her, and hundreds 
of others taken elsewhere, all differ in having 
a clear band across the dark forewing from 
the base of the cubital cell to the costa, wider 
PACIFIC SCIENCE, Vol. VI, April, 1952 
Fig. 29. Lateral aspect of male cauda of Trioza 
colorata (Ferris and Klyver). 
at the costa, in addition to the two clear areas 
on the clavus and at the base of the costa. 
This coloration gives the insects a distinct 
black and white banded appearance in the net. 
The male proctiger is strongly produced 
caudad. The forceps are shorter than the 
proctiger; in lateral view broad, narrowed 
toward base, with broad anterior basal lobe, 
with small black tooth apically; in caudal 
view broad, nearly straight, tips sharp, black, 
incurved. 
Many specimens were taken from Dacry- 
dium biforme at 3,000 to 4,700 feet on Mount 
Ruapehu, November 17 to 27; 2 females 
taken from the same host, Arthur’s Pass, 
February 5; many males and females from 
Dacrydium bidwillii, Balloon Hill, January 10 
and 12. 
HOST PLANTS: Dacrydium bi forme Pilger and 
D. bidwillii Hook. 
Trioza dacrydii n. sp. 
Fig. 30 
Length to tip of folded wings 2. 5-3.0 mm. 
color: General color greenish yellow. An- 
tennae and legs sooty. Veins of forewings 
black, membrane slightly fumate. 
STRUCTURE: Body surface finely punctate. 
Head wider than mesoscutum. Vertex with 
