314 On new or little-known Tipulide. 
with an obscure yellow area at base on either side of the 
median line; hypopygium shiny yellow; sternites obscure 
yellowish brown, the subterminal segments faintly darker. 
Male hypopygium with the pleurites stout, the apical angle 
produced caudad into a conspicuous pale blade. The mesal 
apical angle of the pleurite also produced into a triangular 
point; two pleural appendages, the inner one slender, curved 
at the apex which is feebly bifid and blackened. Gonapo- 
physes appearing as slender blades that are directed caudad, 
the tips slightly mesad. 
Hab. New Zealand (South Island). 
Holotype, 3, Greymouth, sea-level, September 6, 1921 
(TO A, Haris). 
Paratopotype, 3. 
Macromastix atridorsum, sp. n. 
General coloration obscure yellow; dorsum of prescutum 
black with four greyish-plumbeous stripes; antennz short; 
wings subhyaline; stigma pale brown; veins Sc and R sub- 
coalescent distally; r lacking; basal deflection of Cu, close 
to inner end of cell 1st 1/,; abdominal tergites black, the 
basal sternites obscure yellow. 
Male.—Length about 8 mm.; wings 10 mm. 
Frontal prolongation of the head brown; nasus lacking; 
palpi brownish black. Antennze short, black, the basal 
scapal segment brownish testaceous. Front yellowish polli- 
nose; remainder of dorsum brownish grey. 
Pronotum brown. Mesonotal prescutum black with four 
dark grey-plumbeous stripes, the extreme lateral margins, 
humeral region and centre of the V-shaped suture obscure 
yellowish; scutal lobes black, the posterior and_ lateral 
margins fading into obscure yellow; scutellum and post- 
notum obscure yellow, the posterior margin of the latter 
narrowly infuscated. Thorax glabrous. Pleura obscure 
yellow; mesosternum infuscated. Halteres brown, the ex- 
treme base of the stem yellow. Legs with the coxe yellow, 
the base of the fore coxa infuscated; trochanters yellow; 
femora dark brown, the bases obscure yellow; remainder of 
the legs brownish black; legs long and slender. Wings 
subhyaline; stigma pale brown, filling cell Sc; and the distal 
half of cell &,; veins brownish black. Venation: Se, 
present; veins Sc and R almost completely coalesced on 
their distal half; Rs feebly angulate before mid-length ; 
r completely lacking; cell Ist M, almost quadrangular, 
