152 Dr. GC. P. Alexander on 
Male hypopygium with the blackened pleural appendage 
with a conspicuous black spike at base, the tip with small 
black spinule ; each pleural appendage terminates in an elon- 
gate, slender, gently curved spine, immediately below which 
is a pale cylindrical lobe terminating in a seta; this seems 
to be a single complex appendage rather than two approxi- 
mated appendages, but this cannot be definitely affirmed 
without treating the hypopygium. 
Hab. New Zealand (South Island), 
Holotype, 8, Dun Mt., Nelson, altitude 2500 ft., Jahan 
27, 1921 (A. Philpott). 
Allotopotype, ? , altitude 8000 ft., January 24, 1921. 
Type in the collection of the Cawthron Institute. 
Limnophila watti, sp. n. 
General coloration dark brown, the pleura grey pruinose ; 
halteres yellow; legs yellow, the terminal tarsal segments 
brownish black ; wings greyish yellow, the base and costal 
region clearer yellow; rv far from tip of R,; cell JZ, present, 
a little shorter than its petiole. 
Female.—Length about 6°5 mm. ; wing 7 mm. 
Rostrum, palpi, and antennee brown. Head with a greyish- 
yellow pollen. 
Pronotum dark brown with a greyish-yellow pollen. 
Mesonotal preescutum shiny dark brown, the interspaces and 
lateral margins more pollinose; humeral region obscure 
brownish yellow ; pseudosutural fovez conspicuous, black ; 
tuberculate pits elongate, lying a little before the level of 
the pseudosutural fovez ; remainder of mesonotum heavily 
pruinose, the scutellum more testaceous. Pleura dark with 
a delicate grey appressed pubescence, the dorsal sclerites 
more infuscated. Halteres yellow. Legs with the coxe 
brown, covered with microscopic hairs; trochanters brown ; 
femora and tibize obscure yellow, the tibial tips narrowly 
darkened ; metatarsi brownish yellow, the tips narrowly 
darkened ; terminal tarsal segments brownish black. Wings 
with a greyish-yellow tinge, clearer yellow at the base of 
wing and in cells C, Sc, and behind vein Cu; stigma pale 
brown ; veins brown. Venation: Sc, ending opposite the 
end of Rs, Sc slightly removed from the tip of Sc,, the 
latter alone a little longer than R,,3;; Rs long, arcuated at 
origin; AR,,, shorter than the deflection of Ryis5; Rs 
strongly arcuated at origin ; 7 faint, far from the tip of R,, 
near mid-distance between fork of R,3 and tip of R, ; inner 
