Myers.—New Zealand Leaf-hoppers and Plant-hoppers. 407 
Авт. 30.—A Contribution to the Study of New Zealand Leaf-hoppers 
and Plant-hoppers ( Cicadellidae and Fulgoroidea ). 
By J. 0. Mvzns, F.E.S., Biology Division, Department of Agriculture. 
[Read before ig HR lg ирг Society, 25th October, 1921 ; = by Editor 
t December, 1; issued separately, 30th April, 
Puomit few New Zealand insects have been so generally neglected by 
entomologists as those usually small but abundant forms which comprise 
the division Auchenorrhyncha of the Hemiptera-Homoptera. Although 
the comparatively large and at least audibly conspicuous Cicadidae have 
received some considerable attention, the other families have been so little 
collected that a comprehensive monograph of the а is at PS 
out of the question. The present paper is an attempt to bring u 
date our knowledge of a few of the subfamilies as a basis for ud 
taxonomic ane biological work. 
advisable firstly to indicate briefly the exact wa 
of the торе terms “ 1еаї-һоррег” and “ plant-hopper." The following 
classificatory sketch of the Auchenorrhyncha will make this clear :— 
Superfamily 1. Cicadoidea. 
Family Cicadi 
cadi Cicadas, or singers. 
Family Cercopidae Frog-hoppe 
Family Cicadellidae Leaf-hoppers 
Family Membracidae* .. Tree-hoppers. 
cadit 2. Fulgoroidea .- Plant-hoppers. 
In paper a revisional account is given of three subfamilies of the 
Cicadellidae. and one family of the Fulgoroidea. The relative value of 
the families and subfamilies is a debatable matter, in which I have 
followed Mr. uir, to whom I am deeply indebted for specimens, 
determinations, literature, and unpublished information, which he has 
generously and unreservedly placed at my disposal. A list of those who 
have helped me in New Zealand, particularly with р ета would 
include most of the working entomologists of the country. "OK. d 
Atkinson has also collected much valuable material. Since this was sep ae 
Professor C. F. Baker has been most generous with help and advice. 
I. CICADELLIDAE (Leaf-hoppers). 
Syn. JassrpAE, TETIGONIIDAE, auctt. 
Of this large family only two species have hitherto been described 
: from New Zealand, of which one is extrem МУ, rare, while the mAb idm 
species are continually coming to light. The Cephalelinag Typhlocybinae, 
and Tettigoniellinae are dealt witb in the following pages; the other 
three subfamilies will be treated, it is hoped, in a later communication. 
With regard to the venation I have followed Tillyard in regarding vein 
lst A of Metcalf (1913) as really Cu,. 
* Not, as far as is known, represented in New Zealand. 
