Psyllidae of New Zealand — TutHILL 
101 
falcata has a prominent transverse sulcus 
caudad of the anus and is much more blunt 
apically. The ventral valve of falcata has a 
very prominent hump which is lacking in 
equalts. 
The unique type was collected at Arthur’s 
Pass. 
HOST PLANT: Unknown. 
Trioza hehicola n. sp. 
Fig. 12 
Length to tip of folded wings 4.0-4. 5 mm. 
color: Pale green, yellowish ventrally. 
Wings hyaline. 
STRUCTURE: Body surface finely punctate, 
with sparse fine pubescence. Head narrower 
than mesoscutum. Vertex with strong discal 
impressions, bulging anteriorly. Genal proc- 
esses divergent, conical, over 0.66 as long as 
vertex, as long as medial suture. Antennae 
slightly over twice as long as width of head. 
Thorax strongly arched. Pronotum vertical. 
Forewings large, very broadly rounded, less 
than 2.5 times as long as wide; Rs long, 
sinuate, cubital cell larger than medial. Meta- 
tibiae with serrate basal carina, 1 outer and 3 
inner apical spines (several of the specimens 
at hand show 4 inner spines on one tibia). 
Male proctiger strongly produced caudad, 
with prominent apical epiphysis. Forceps 
shorter than proctiger; in lateral view strongly 
bilobed, caudal lobe broadly rounded, an- 
terior lobe more slender and with sharp, 
black, incurved tip, with basal anterior lobe 
from mesal face one half as long as main 
anterior lobe; in caudal view very broad, 
rounded apically, long sclerotized ridge on 
mesal surface near apex. Female genital seg- 
ment small, shorter than rest of abdomen, 
dorsal valve sinuate, blunt, with prominent, 
raised beak apically; ventral valve nearly as 
long as dorsal, scoop-shaped. 
HOLOTYPE, male, swept from Hehe salici- 
folia near Tawhai Falls, Tongariro National 
Park, December 3; allotype, female, reared 
from pit gall on Hebe salicifolia, same locality, 
November 26; several male and female para- 
Fig. 12, Trioza hehicola n, sp. a, Lateral aspect of male 
cauda; b, lateral aspect of female cauda. 
types, mostly reared from material taken 
November 23-26 and December 5-10. 
HOST PLANT: Hebe salici folia Forst. 
Although I searched for psyllids on Hebe 
salici folia throughout New Zealand, this is 
the only spot in which I obtained any speci- 
mens from it. This is a most remarkable 
localization. The galls produced by the 
nymphs are very prominent. They are thimble- 
shaped, up to 0.25-inch long, and project 
downward on the leaf. The nymphs are nearly 
round, surrounded by long wax tubes, and 
usually concave dorsally, as they accommo- 
date themselves to the shape of the pit. 
