MyErs.—New Zealand Leaf-hoppers and Plant-hoppers. 427 
remainder finely transversely striate. Humeral angles produced, truncate, 
covering base of tegmina. Pronotum and tegmina very pale yellowish- 
or greenish-white or practically colourless. Pronotum narrowly rounded 
anteriorly, and very slightly excavated posteriorly. Wings milky. Base of 
scutellum considerably wider than posterior border of vertex. Scutellum with 
depressed anterior portion and slightly elevated acute apex. Triangular 
area on each side of base of scutellum often brownish. Under- surface 
pale creamy-white. Claws fuscous. Frons very tumid, with dull frosted 
surface. Genitalia of both sexes pale. Upper surface of abdomen white. 
Total length, 3-4-4 mm. (male and female). 
In one well-marked variety (No. 175) the colour is a soniewhat brighter 
yellowish, and the hind border of pronotum, dise of scutellum, extreme 
edge of radial margin of tegmina, and to a less extent the membrane of 
tegmina are suffused with fuscous. 
In a second variety (No. 185, one specimen) the brown colour is con- 
fined to the two basal triangular spots of the scutellum and to its sides, 
forming a very distinct dorsal V. As I can find no accompanying struc- 
tural peculiarities, and as the faint brown markings sometimes present 
in the more typical specimens vary greatly in intensity, I am constrained 
to regard this as nothing more than a colour variety comparable to those of 
the common Cercopid Philaenus trimaculatus (Walker). 
This variable and common species occurs among mixed undergrowth 
in ordinary rain-forest. With specimens collected by beating and sweeping 
it is difficult to be sure of the food-plants, but one 1s the tree-fern Cyathea 
dealbata, and another, on which all stages can be collected, is Coprosma 
grandifolia. Specimens from the tree-ferns are uniformly and constantly 
more whitish, and the types have been selected from these. 
Tararua Range, Wellington district, 2,000-3,000 ft., November to June. 
Described from twenty-six males and forty females. i ; 
Holotype, allotype, and paratypes in Myers collection, Biology 
Laboratory. 
Erythroneura ansonae n. sp. (Fig. 34.) 
and clypeus deep dirty-yellow. Clypeus with some indications of trans- 
Verse rugosities. Genae darker. 
Total length (female), 3-5-3°7 mm. Male unknown. | 
е markings superficially resemble those described for E. (Zygina) 
Parvula (Boh.), but are much less clearly defined. A comparison of the 
