Zz N.C. AGR. EXP. STA. BUL. 239 
numbers in that Catalogue are the same as, but more inclusive than, Metcalf’s 
‘Bibliography of the Homoptera Auchenorhyncha”’, vol. 1 (1942), published in 
1944, by the North Carolina State College of Agriculture and Engineering, Un- 
iversity of North Carolina. The terminal bibliography of the present paper in- 
cludes only those papers not included in the 1964 bibliography. 
Unless stated otherwise, all the new names and names of new taxa proposed 
here are arbitrary combinations of letters. For the new genera, it is intended that 
the nominal species selected as type-species be accepted, unless stated otherwise. 
Because of limitations of space and time, no record was kept of the in- 
stitutional source of all the specimens examined. Also for want of time, mis- 
identifications in the literature have not been corrected. Many of the localities 
reported heretofore for some of the species are based on misidentifications. The 
geographic range indicated in the lists of species include only those localities 
from which I have seen accurately identified specimens, with rare exceptions that 
are explained, or indicated by brackets. It should be noted that discrepancies 
between the ranges given for new species in their descriptions and in the list of 
species occur occasionally. This resulted from the identification of additional 
specimens of the respective species after the description was written — in some 
cases after a lapse of several years. 
Acknowledgments 
This work was begun with the assistance of a National Science Foundation 
grant, and was continued through the generosity of North Carolina State Uni- 
versity in making research time available and in providing financial support. 
Dr. James P. Kramer of the Systematic Entomology Laboratories of the U.S. 
Department of Agriculture criticized large portions of the manuscript and made 
many useful suggestions, a number of which are specified in the appropriate por- 
tions of the present paper. 
I am grateful to Dr. W. J. Knight of the British Museum (Natural History) for 
comparing some specimens with types, and to Dr. Pavel Lauterer for a few obser- 
vations on types in the Moravian Museum at Brno. The late Dr. A. Belindo 
Torres, of Universidad Nacional of La Plata sent authentically determined 
specimens of Berg species. Dr. Carlo Vidano of Torino, Italy, kindly supplied ex- 
cellent photographs of specimens from the Spinola collection at Tassarolo Castle, 
Italy. 
Dr. James W. Hardin of North Carolina State University assisted by editing 
the scientific names and their authors for the plant species mentioned here. Dr. 
Paul Freytag, of the University of Kentucky was instrumental in sorting 
specimens, useful in this work, from the California Academy of Sciences and the 
American Museum of Natural History. 
Once more, I am grateful to my wife, Irene, for her patience and encourage- 
ment during the years this work was in progress. 
The following people were helpful in making specimens and study facilities 
available, and in many other ways. The symbols are those used later in this work 
to refer to them or to their institutions. 
Dr. P. Arnaud and Dr. E. S. Ross, California Academy of Sciences (CAS). 
Dr. Douglas Barnes, Rockefeller Foundation, Mexico (RFM). 
