118 
Fig. 27. Trioza fasdata (Ferris and Klyver). a, 
Lateral aspect of male cauda; b, caudal aspect of 
claspers; c, lateral aspect of aedeagus. 
shortj deeply cleft. Aedeagus of remarkable 
form as figured. 
HOST PLANT: Muhknbeckia australis Meissn. 
Several specimens of this very beautiful 
species were taken at Paiaka, the Phormium 
Research Station near Foxton, with the as- 
sistance of R. A. Cumber of that station, on 
May 4. They were beaten from a tangle of 
Muhlenheckia australis and Urtica growing in 
a Phormium swamp. First- stadium nymphs 
were found in small galls formed by the curl- 
ing under of the edge of the leaf of the 
PACIFIC SCIENCE, Vol. VI, April, 1952 
Muhlenheckia, Additional specimens were 
taken by R. A. Cumber at the same spot May 
5, 1950, at which time they were very abun- 
dant. 
Trioza decurvata (Ferris and Klyver) 
1932 Powellia decurvata Ferris and Klyver, 
New Zeal. Inst., Trans. 63: 37, 39, 44, 
pis. 9, 10. 
Numerous specimens of this species were 
taken from its host plant, Dracophyllum ur- 
villeanum var. montanum of Cheeseman (which 
is now considered to be a hybrid between 
D. recurvum and D. longifolium ) , on the slopes 
of Mount Ruapehu during the latter half of 
November at altitudes ranging from 3,000 to 
4,700 feet. The only discrepancy between 
these specimens and the description and fig- 
ures of Ferris and Klyver is in the length of 
the genal processes, which they record as fully 
as long as the vertex, but which are not over 
0.8 as long in any of the specimens at hand. 
Additional data are: Length to tip of folded 
wings, 2.75 to 3.25 mm. Some individuals 
more or less green, especially the abdomen, 
others with forewings dark brown. Membrane 
of forewings thickened, points very small. 
Trioza obfusca (Ferris and Klyver) 
1932 Powellia ohfusca Ferris and Klyver, New 
Zeal. Inst., Trans. 63: 38, 46, pis. 9, 11»' 
No specimens of this species were taken 
unless the following form is identical. (See 
the discussion under T. obscura) 
Trioza obscura n. sp. 
Fig. 28 
Length to tip of folded wings 2.75- 
3.00 mm. 
COLOR: General color brown, dark dorsally, 
lighter ventrally. Forewings brown, with 
small dark-brown anastamosing spots, to very 
dark, almost black. Hind wings dark brown 
along anal margin. 
structure: Body surface shining, punc- 
tate, with extremely short, sparse pubescence, 
