4 GENERAL CATALOGUE OF THE HOMOPTERA 



logically under the author's name. This method of citation eliminates 

 the necessity for a complete literature citation in the catalogue proper. 



The Family Gyponidae consists of 37 genera and 488 species. 

 This family may be characterized as follows : 



Some of the species are very small but others may attain a length 

 of 17 mm. They are robust and flattened, some resembling cercopids 

 in general appearance. The head is usually wider than long, and 

 varies from a condition in which it is broadly rounded to the face, 

 to one in which it is sharply angled with the face, occasionally with 

 the margin foliaceous. The ocelli are frequently on the crown, but 

 they may be on the margin between the crown and the face. They 

 are not close to the eyes. The clypeus varies from concave to con- 

 vex. Antennal ledges may be distinct or not. The forewings have 

 an appendix, and a venation which may be normal or reticulate, 

 occasionally with supernumerary veins to the costa. A large num- 

 ber of species feed on woody plants but some feed on shrubs and 

 grasses. 



The following classification has been adopted for this family : 



Page 



Family Gyponidae 5 



Subfamily Gyponinae 13 



Tribe Gyponini 13 



Subfamily Pentbimiinae 157 



Subfamily Tbaumatoscopinae 217 



Twenty-six of the species in the present catalogue have a distribu- 

 tion covering two or more zoogeographic regions, and two species 

 are from unknown localities. The other species are recorded as fol- 

 lows: 128 from the Nearctic region, 64 from the Caribbean region, 

 162 from the Neotropical region, 10 from the Palearctic region, 18 

 from the Ethiopian region, 38 from the Oriental region, 16 from the 

 Malaysian region, 2 from the Austro-Malayan region, and 22 from 

 the Australian region. 



The known geographic distribution of each species is indicated by 

 superscript figures at the end of the lines, which correspond to geo- 

 graphic regions designated by the same superscript figures. In gen- 

 eral, the distribution is as given by the author of the reference, using 

 the country as the smallest unit, except in the case of 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 endemism. 



D. A. Young, Jn. 



FOR 



Z. P. Metcalf 



Raleigh^ North Carolina 

 February 1959 



