292 Transactions. 
noticeable towards pterostigma, but these are absent in female. 
sexes there is a strongly marked patch of dark hairs at junction of 3A 
with 2A. Numerous short upright hairs are present on wing, those ». 
distal half being very pale, those on basal half being pale also in female, 
а 
TExT-FIG. 7.—Neurochorema decussatum п. g. and sp., ¢. Appendages (х yea 
a, lateral view; b, dorsal view. Note the crossed pre-anals. (10 pe 
cent. KOH preparation.) A 
but pale mixed with dark hairs in male, especially along Cu and e 
branches, where there are numerous dark hairs. Hindwing hyaline, iri i 
scent, with pale yellowish-brown hairs distally, and pale fringe of sam 
colour. 
Types.—Holotype male (Nelson, 5th October, 1920, A. Philpott), gee 
female (20th October, 1920, A. Philpott), and series of five paratype ma j^ 
taken October to November, 1920, by Mr. Philpott, at Nelson: all 
Cawthron Institute collection. jani 
Habitat.—South Island of New Zealand, especially around Ne Pu 
Other localities are Cass, Canterbury, and also around Invercargill. £r 
bably widely distributed. als 
omen blackish; appendages of male yellowish-brown, pre-an 
crossed as shown in text-fig. 7; in the dried insect they sometimes appe@ 
evenly more strongly crossed. : 
Allied to both Hydrobiosis and Hydrobiosella, but differing from both 
of them in the absence of Af, in the hin wing, R ing £ a 
without a terminal fork. It resembles Hydrobiosella in having both ле Td 
and Af, of forewing sessile upon the closed radial cell, whereas Hydro a 
