1926 
New or Little Known Australasian Cicadas 
67 
pott ; one from Arthur’s Pass, 3,000 — 4, 000 feet, February, 1920, 
G. V. Hudson. 
In the present fragmentary state of our knowledge of the 
mountain cicadas of New Zealand, it is very difficult to separate 
the females of some of the species of which the male genitalia are 
remarkably distinct The most useful character so far used is 
the ratio of the length of the vertex to the width between eyes. 
Oromelcena is a high mountain form nearest to nigra , but 
distnguished by its larger size and different sedeagus (fig. 8). 
Melampsalta mangu F. B. White. 
F. B. White, 1879, Ent. Mo. Mag., vol. 15, p. 21. 
M. quadricincta (part) Myers, (nec Walk.), 1921, Trans. N- Z. 
Inst., vol. 53, p. 246, (pi. 45, figs. 3, 4, are not this species 
but true cassiope). 
Buchanan White evidently had two species before him, 
comprised in four examples from “ Porter’s Pass, Canterbury, 
about 3,500 feet,” collected by Wakefield. The bulk of the des- 
cription seems to refer to the common alpine cicada named by 
Hudson, Cicada cassiope , but hitherto placed in the synonymy 
of the quite unrelated Australian M. quadricincta (Walk.) as we 
have noticed previously. But the only remaining material of 
M. mangu in the Buchanan White collection is a female in poor 
condition, labelled “mangu,” presumably in White’s hand- 
writing and with the locality, “Porter’s Pass,” but lacking a 
date. It is reasonable to suppose that this is one of the original 
four, and therefore by elimination to be considered the type of 
M. mangu. It is not conspecific with cassiope, but with a form 
of which we have a series from the Dun Mountain, and which 
we were about to describe as new. Buchanan White’s specimen 
differs only in the fact that the hind tibiae have a dark ring near 
the middle, but the leg coloration in Melampsalta, especially the 
mountain forms, seems very variable. 
The large and altogether black species mentioned by White 
at the close of his description, is probably conspecific with 
oromelcena sp. n., just described. 
The following is a re-description of the type of mangu . — 
