340 Transactions. 
drawn up from this specimen; the figure of hypopygium is taken from 
ы nost] type, Du ў damaged but obviously identical. These are the 
only two specimens I have seen, all others so determined proving to 
belong to related but distinct species. 
Macromastix albistigma n. sp. (Figs. 114, 174.) 
Differs from M. viridis as follows: Middle praescutal stripe obsolete, 
lateral pair conspicuously darker. Abdomen dulle er, more ochreous, tip 
no 
tergites except first. Hypopygium smaller, the claspers with a slightly 
different structure. Legs lighter in colour. Wings distinctly brown-tinged, 
lower pre-arcular cell, costal and subcostal cells, base of cell R, and veins 
dark brown; stigma conspicuously whitish-ochreous. Cell "M, sessile 
in some specimens ; cell Ax perest, in the middle. Length of body, 
d 16-17mm., 9 17-20 mm.; wing, 18-23mm.; halter, about З тт. ; 
hind leg, 9 45-50 m. 
Sours ISLAND: p DR age t January, 1920, one female, in 
Canterbury Museum ; West Plains, 4th February, 1903, one female (wing 
figured). Also five ‘males, all es aged, in Osten-Sacken collection in 
Berlin-Dahlen Museum, without еу label; попе of these is sufficiently 
well preserved to select as a holot 
The ovipositor of female, syn rather long and sharply pointed, 
has hairy valves which are no more strongly chitimized than the general 
integument of the abdomen. 
Macromastix holochlora (Nowicki). (Fig. 175.) 
"po holochlora Nowicki, Beitr. z. K. der Dipi. Neuseelands, p. 9; 
187 
Though sb nearly allied to М. viridis, this has wrongly been 
regarded as synonymots with that species. The hypo opygia are very dis- 
from other members of the group by the entirely green t thorax, the meso- 
notum having only a slight ochreous tinge (probably none + үе), апа по 
There are apparently two varieties, differing as follows : «m Abdomen 
entirely green ; tips of femora and tibiae scarcely darkened ; wings prac- 
Beslly hyaline ; stigma entirely pale-greenish ; cell Ax moderately broad. 
towards base; tips of femora and tibiae more distinctly darkened ; wings 
greyish-tinged ; ; stigma dark Ew at base; cell Ax narrower. Length of 
body, 10-20 mm. ; wing, 14— 
Norra lsLAND: c aimer of Auckland, 1854 (Colonel Bolton), 
two females of typical form in British Museum ; Karori, Wellington, 
December, 1920 (G. V. Hudson, No. 323), one male of var. 6, one female 
of typical form, in British Museum ; Te Wairoa, 15th November, 1919 
(D. Miller), one male of typical form. Sours Istanp: West Plains, 6th 
February, 1906, one male of var. b. 
Division III. 
Rs at most slightly longer з Bats: Female abdomen blunt-ended. 
Male antennae frequently elonga 
