ALEXANDER.— Studies on the Crane-flies of New Zealand. 657 
Gynoplistia arthuriana Edwards. 
1923. Gynoplistia arthuriana Edwards, Trans. N.Z. Inst., vol. 54, 
p. 319, pl. 30, fig. 75 (wing). 
Edwards's type was from Arthur's Pass, Canterbury, at 3,000 ft., col- 
lected by Hudson. The species is known only о this general region. 
Allotype.—9. Length, 11:5 mm. ; wing, 10 m 
Characters as in female, differing as Die Anei 17-segmented, 
the formula being 2--2--84-5, basal pectinate branches being in spiral 
alignment; longest branches between three and four times the length of 
segments that bear them. Head grey, vertex suffused with rich brown. 
Mesonotal praescutum with median stripe almost concólorous with ground- 
colour, margined laterally with brown; lateral stripes distinct. Abdomen 
hypopygium (fig. 17) with caudal margin of ninth tergite very feebly 
concave medially.  Basistyles relatively short and stout, simple, теа] 
face grooved, adjoining margins and apex on mesal face densely provided 
with long coarse ipe that become small to obsolete on outer face at base 
of sclerite; a small pale unarmed tubercle on mesal face of sclerite at base. 
Outer dististyle а a flattened blade; some distance before apex on outer 
face with a small black tooth; apex gently serrulate to crenulate; inner 
dististyle shorter, just beyond mid-length gradually narrowed to slender 
feebly setiferous apex. Gonapophyses closely subtending small curved 
aedeagus, each apophyse trifid at apex. 
Allotype, 3, Ойга Gorge, Westland ; 10th January, 1920 (J. W. Campbell). 
Atarba (Atarba) viridicolor Alexander. 
1922. Atarba (Atarba) viridicolor Alexander, Ann. Mag. Nat. Hist. 
(9), vol. 9, p. 308. 
he type, a female, was taken by Harris at Ohakune in October, 1921. 
The os is at P known only from this general region 
.  Allotype.—d. Length, about 5-8 mm. ; wing, 7-3 mm. ; antennae, about 
mm. : 
Generally similar to female, differing chiefly in sexual characters. 
Antennae very long, nearly twice length of body, elongate-cylindrical 
flagellar segments with numerous delicate erect setae distributed throughout 
their length. Green coloration of body is faded into a fawn-yellow, coxae 
remaining green. Abdominal tergites brown, sternites paler; a subterminal 
dark-brown ring. Male hypopygium (fig. 18) with basistyles very long and 
slender, surface setiferous, especially mesal face; immediately before apex 
on mesal face with low setiferous tubercle. A single dististyle, this very 
remarkable and suggestive of the origin of the double dististyli ым most 
Tipulidae ; style is a pale, curved blade, apex obtuse, just beyond mid- 
length on outer face with a slightly shorter densely spinous lobe; the 
pale, apex truncate. Gonapophyses appearing as slender strongly curved 
horns, directed cephalad, thence mesad, caudad, sind finally ree in almost 
a circle. Aedeagus relatively short, twisted at base, apex obtu 
The more widely distributed Atarba (Atarba) filicornis пу АЗА 
exhibits a very different type of hypopygium (fig. 19). Ninth te tergite 
deéply emarginate posteriorly, the relatively slender lateral lobes thus 
formed being provided with long coarse setae. Basistyles shorter and stouter, 
subapical tubercle more slender; interbasal process very small. Dististyle 
