Psyllidae of New Zealand — Tuthill 
109 
forceps is heavily sclerotized, black, and much 
more obliquely truncate than Ferris and 
Klyver’s figure would indicate. 
HOST PLANT: Brachy glottis repandr a Forst. 
This species has been taken in abundance 
on rangiora, Brachy glottis repandr a ^ at several 
localities. Many nymphs, a few adult females, 
and several mummified males were taken near 
Nelson on October 19- Adults were present 
on rangiora in abundance at Rotorua, De- 
cember 4. Other collections are: Waitakere 
Hills, near Auckland, September 29, 1950, 
W. Cottier; Cape Rainga, October 3, 1950, 
W. Cottier and L. D. Tuthill; near Manga- 
muka, October 4; Waipoua Forest, October 
5; Buller’s Bush, near Levin, October 27; 
Palmerston North, several dates in October 
and November; lower reaches of Mount 
Ruapehu, November 18; near Taumarunui, 
November 26; Takaka Hill, near Nelson, 
January 13. 
I think there is no doubt of the identifica- 
tion of this species. I cannot understand, 
however, the statement by Ferris and Klyver 
that it is ’Very close to P. acuta as it differs 
markedly in body form, head characters, and 
in size and shape of the wings. It is very 
similar to the following several species which 
are found on other shrubby Compositae, i.e., 
Olearia and Senecio. 
Trioza doryphora (Maskell) 
Fig. 19 
1880 Powellia doryphora Maskell, New Zeal. 
Inst., Trans. 12: 291, 301. 
Length to tip of folded wings 3.5-3.75 mm. 
COLOR: General color white to greenish 
white or pale yellow. Dorsum of abdomen 
brown to black. Males darker. Forewings 
slightly embrowned except along veins. 
STRUCTURE: Surface of body rough, with 
short, sparse pubescence, more or less covered 
with powdery wax. Head narrower than meso- 
scutum. Vertex impressed discally, slightly 
bulging over base of genae. Genal processes 
slender, conical, divergent, 0.7 as long as 
vertex. Antennae slightly less than twice as 
long as width of head. Eyes large, hemi- 
spherical. Postocular area large. Pronotum 
strongly depressed, below plane of vertex. 
Mesonotum strongly produced anteriorly, 
overhanging pronotum. Forewings large, 
broadly rounded, 2.5 times as long as wide; 
membrane roughened, set with minute points 
except along veins; Rs very long, sinuate, 
cubital cell somewhat larger than medial. 
Hind wings large, transparent, set with 
prominent points. Metatibiae with somewhat 
a 
Fig. 19. Trioza doryphora (Maskell). a. Lateral aspect 
of male cauda; b, lateral aspect of female cauda. 
