106 
PACIFIC SCIENCE, Vol. VI, April, 1952 
by a prominent white fringe of wax tubes. 
HOST PLANTS: Nothopanax spp. 
Trioza schejjiericola n. sp. 
Fig. 16 
On December 5, 1950, I collected a series 
of adults, nymphs, and eggs, from Schejflera 
digitata in the Mamaku Hills. This was the 
only certain occurrence of a psyllid on this 
host which I discovered although I believe 
that an earlier collection near Mangamuka 
was from both Nothopanax and Schefflera. Both 
the nymphs and adults looked quite distinct 
in the field. The nymphs, bright orange in 
color, were very flat, on the upper surface of 
the leaves, without any conspicuous fringe of 
wax tubes. They had not produced any visible 
structural malformation of the host tissue but 
each was surrounded by a discolored necrotic 
area. Careful examination in the laboratory, 
however, shows them to be very similar to 
T. irregularis. The adults have proportionately 
much larger wings, the membrane of the 
forewings is without points except behind 
cubitus, and the forewing is yellow. The shape 
of the anal ring of the nymph is different, 
being more strictly transverse and not nar- 
rowed toward the ends. All the other differ- 
ences I have found are simply slight differ- 
ences of degree. 
1 
Fig. 16. Trioza schefflericola n. sp. Anal pore ring of 
nymph. 
It is with considerable doubt that I desig- 
nate this as a distinct species. Only further 
work and some biological information can 
definitely determine its status. I believe that 
such information will indicate that it is dis- 
tinct. If it does not, the sinking of this 
epithet into synonymy will cause no con- 
fusion, 
HOLOTYPE, female, allotype, male, several 
male, female, and nymphal paratypes, Mama- 
ku Hills, December 5. Nymphs taken from 
the same host plant are in the Plant Diseases 
Division Collection: Titirangi, August 5, 
1945, M. W. Carter. 
HOST PLANT: Schefflera digitata Forst. 
Trioza alseuosmiae n. sp. 
Fig. 17 
Length to tip of folded wings 3.25-3.5 mm. 
COLOR: Body straw, abdomen greenish in 
some specimens. Forewings yellow. 
structure: Body small, surface finely 
rugose. Head large, as wide as mesoscutum. 
Vertex with strong discal impressions, bulg- 
ing anteriorly. Lateral ocelli large, well for- 
ward on vertex. Genal processes small, stout, 
somewhat divergent apically, 0.5 as long as 
vertex (almost as long as medial suture). 
Antennae twice as long as width of head. 
Eyes large, bulging, hemispherical. Post- 
ocular and occipital areas strongly developed. 
Thorax strongly arched. Pronotum large, 
nearly vertical, not depressed below plane of 
vertex. Forewings very large in proportion to 
body, angular apically, 3 times as long as 
wide, membrane without points, surface very 
finely roughened; Rs moderately long, sinu- 
ate, marginal cells large, cubital slightly larger 
than medial. Metatibiae with prominent ser- 
rate basal Carina, 1 outer and 3 inner apical 
spines. 
Male proctiger long. Forceps much shorter 
than proctiger; in lateral view broad, anterior 
and caudal margins slightly sinuate, apex 
truncate with blunt black tooth at caudal 
margin; in caudal view stout, evenly arched 
to blunt black tips. Elbow of aedeagus highly 
sclerotized, brown or black. Female genital 
segment shorter than rest of abdomen; dorsal 
valve straight to narrowly blunt apex; ventral 
