VI 
Introduction 
by author, year, and key letter, e.g. Fabricius 1802a. The full reference can 
be obtained by consulting the Bibliography of the Cercopoidea in which 
authors are arranged alphabetically and their works chronologically under 
the author’s name. This method of citation eliminates the necessity for a 
complete literature citation in the catalogue proper. 
The Family Machaerotidae consists of thirty-one genera and 104 species. 
This family may be characterized as follows: Head narrower than pro- 
notum; face strongly inflated. Thorax with scutellum as long or longer 
than pronotum and either acuminate apically or with a strong, arched, 
apical spine which is directed caudoventrad. Forewing with a single claval 
vein or with two claval veins which coalesce at or before their midlength. 
Hind wing with the outer branch of vein R (vein R2+3) absent. Nymphs 
forming fixed calcareous tubes of which the shape is specifically distinct. 
The following classification has been adopted for this family: 
Page 
Family Machaerotidae 1 
Subfamily Hindolinae 4 
Tribe Hindolini 4 
Tribe Hindoloidini 21 
Subfamily Machaerotinae 26 
Tribe Sigmasomini 27 
Tribe Machaerotini 29 
Subfamily Maxudeinae 44 
One of the species in the present catalogue has a distribution covering 
two or more zoogeographic regions. The other species are recorded as 
follows: 34 from the Malaysian Region, 24 from the Oriental Region, 18 
from the Palearctic Region, 17 from the Australian Region, 8 from the 
Ethiopian Region, and 2 from the Austromalayan Region. 
The known geographic distribution of each species is indicated by 
superscript figures at the end of the lines, which correspond to geographic 
regions designated by the same superscript figures. In general the distri- 
bution is as given by the author of the reference, using the country as the 
smallest unit except in the larger countries where states and provinces are 
used as the smallest units. In the larger island groups the individual islands 
are indicated wherever possible in view of the importance of island en- 
demism. 
Z. P. Metcalf 
AND 
D. A. Young 
Raleigh, North Carolina 
January 1960 
