CICADELLOIDEA — MACROPSIDAE 3 



nova; secondary homonyms have been restored to their original 

 names if the homonymy has been relieved by moving one or the 

 other, or both species, to other genera. 



All specific endings have been modified to agree with the suggestions 

 made by Blackwelder 1940, Journal of the Washington Academy of 

 Sciences 31: 135-140. There are certain disadvantages inherent in 

 this method, but it seems to the writer that these limitations are 

 outweighed by the advantages of the system. We are confronted 

 by so many coined words that can have no gender that it seems better 

 to use this system and disregard apparent violations of Latin and 

 Greek grammar. Where the gender of generic names can be deter- 

 mined, the appropriate adjustments are made in the specific names. 



In a detailed catalogue such as this, it is practically impossible to 

 eliminate all errors. We wUl appreciate it very much if our attention 

 is directed to all such mistakes. It is especially easy to overlook 

 lists published in the proceedings of local natural history societies, 

 references to species of economic importance published in scientific 

 agricultural journals, references to vectors of plant diseases published 

 in phytopathological journals, and references of a similar nature. 

 It will be very much appreciated if authors wUl send us reprints of 

 all articles dealing with the Homoptera. Also, it would seem that 

 no changes in the nomenclature adopted in this catalogue should be 

 made in the future without a full explanation. 



All literature available to the writer before December 31, 1955 

 has been included in this catalogue. 



The present catalogue of the Family Macropsidae is the thirteenth 

 part of the Cicadelloidea. This was virtually complete at the time 

 of the death of Dr. Z. P. Metcalf on January 5, 1956. It was com- 

 pleted with the aid of Miss Virginia Wade, research analyst. North 

 Carolina State University, who worked with Dr. Metcalf for 7 years, 

 and the technical advice of Dr. David A. Young, North Carolina 

 State University, and Dr. W. H. Anderson, Insect Identification and 

 Parasite Introduction Research Branch, Entomology Research Divi- 

 sion, U.S. Department of Agriculture, Beltsville, Md. Miss Emily 

 Bennett, formerly Librarian of the Division of Insects, U.S. National 

 Museum, was extremely helpful in locating certain references needed 

 for the catalogue. The higher categories utilized in this classification 

 are those decided upon by Dr. Metcalf during his work on the 

 catalogue. 



In this part of the catalogue a method of literature citation has 

 been adopted which differs from that used in the catalogues of the 

 fulgoroid families. References are cited by author, year, and key 

 letter, e.g.,, Fabricius 1802a. The full reference can be obtained by 

 consulting the Bibliography of the Cicadelloidea, in which authors are 

 arranged alphabetically, and their works chi'onologicaUy under the 



