Meyricxk.—On New Zealand Geometrina, 51 
uncertain identification of species; they are for this reason placed in an 
appendix. The only localities given are those for which I have direct 
authority from labelled specimens; those quoted by Walker and Butler are 
very often quite erroneous, and I have neglected them altogether. It is 
very desirable that collectors should at once begin to work out the larval 
habits of these insects, and make accurate descriptions of the larve, which 
will probably be found as variable in colour as the imagos. All information 
as to localities, seasons, and habits will be of value, and also, in the case of 
mountain species, as to the elevation at which they are found. 
Of the New Zealand Geometrina Doubleday described six species in the 
appendix to Dieffenbach’s “New Zealand.” The descriptions are very 
brief, but I have identified all with tolerable certainty. Walker in his 
“ British Museum Catalogues” published no less than 92 names, of which 
26 represented new species, 47 were synonyms, and 19 are unidentified. 
Guenée in his “ Phalenites,” and in a paper published in the “ Entomo- 
logists’ Monthly Magazine,” described 25, of which only 5 were new, the 
rest being all synonyms of species previously known. Felder in the ** Reise 
der Novara ” has figured 42 as new; of these 11 are in fact new, 27 are 
synonyms, and the other 4 I have not yet been able to identify satisfac- 
torily. Butler has published various descriptions—sometimes accompanied 
with figures, which are mostly very poor—in the “Catalogue of New 
Zealand Lepidoptera," appended to the “ Voyage of the ‘Erebus’ and 
‘Terror, ” a paper in the “ Proceedings of the Zoological Society of 
London” for 1877, and two papers in the “ Cistula Entomologica,” 82 
in all; of these 10 are new, 19 are synonyms, and the other three appear 
unidentifiable. Mr. Fereday has described two species, of which one is 
new. In the present paper I have added 80 others, including all known to 
me, and bringing up the total number to 89. Two or three of those which 
I have described may perhaps be found amongst Walker’s unidentified 
species, but this was unavoidable. In an appendix I have added references 
to all descriptions which I have not been able to identify, but it must not 
be supposed that these indicate additional species; probably almost all will 
prove to be synonyms of others previously described ; they are numbered 
separately for convenience of reference. 
The classification of the Geometrina is founded almost wholly on char- 
acters drawn from the neuration, which is more complex than usual; the 
antenne and palpi are liable to no considerable amount of diversity, and 
are not generally of more than secondary importance. The legs and other 
organs afford no tangible points, at least among the New Zealand species. 
The shape of the wings, often employed by superficial observers, is not of 
the least value, being purely specific. In cases where a specimen cannot 
