1926] 
New or Little Known Australasian Cicadas 
69 
from Mount Tapuaenuku, 3,000 to 4,000 feet (coll. G. V. Hudson, 
14th February, 189d). From the Dun Mountain material I have 
selected a male plesiotype (in my collection) and figured the 
genital a. I expressly refrain from declaring this the allotype of 
mangu, for material from the type locality o: the latter species 
may prove my identification, based on the single female, to be 
incorrect. 
The song of Melampsalta mangu. — The song of the insect 
which we have identified with Buchanan White’s M. mangu is 
extremely low-pitched — -so low as to be almost imperceptible to 
some ears until attention is called to it. I has a very dull, 
toneless quality, and sounds rather like a buzzing wing vibration. 
It consists of a series of slow vibrato phrases of two notes of the 
same pitch at a rate of approximately one note in 2 seconds. The 
first, longer note of the phrase sounds, when one is nearer to the 
insect, more like a series of discrete staccato notes. Because of 
the vague muffled quality of tone the nsect is almost unlocalisable 
by sound. Partly because it is over two octaves lower in pitch, 
and partly because of the tonal quality accompanying this, the 
song of M. mangu is utterly unlike that of any other New Zealand 
cicada so far heard. 
A - 4S4CS. j>c. D.c. 
'Vibf. — — 'Vibr. -w 
Melampsalta Campbell! Myers 
1923, Trans. New Zealand Inst., vol. 54, p. 430. 
The male, discovered since the above was written, may be 
described as follows, — Head considerably narrower than prono- 
tum. Abdomen somewhat oblong. Seventh sternite very short 
and wide, narrowing and sinuate apically. Venation normal for 
the genus. Head and thorax especially, moderately hairy with 
long black hairs. (The female holotype was worn and smooth). 
Opercula moderately large with shining black slightly elevated 
area at base. Aedeagus as figured (12). 
