BUFFALO SOCIETY OF NATURAE SCIENCES 505 



named when the genus was established, and neither striata nor 

 pell uci da can be taken as the type of Delphax as they were not 

 among the original species of that genus. The types of both 

 of these genera, if both are retained, must be taken from the 

 two species originally included in each genus — crassicornis and 

 clavicornis — and as L,atreille has named clavicornis as the type of 

 Asiraca we get by elimination crassicornis as the type of Del- 

 phax, thus making it synonymus with Arceopus Spinola. 



We now come to the name Liburnia. This was first used 

 by Stal in 1866 (Hemip. Afr. , iv, page 179) where he places as 

 its first synonym " Delphax Auctor" and as a second ^Embolo- 

 pliora Stal". This genus Embolophora, which was first described 

 by Stal in 1853 as EmbolopJipora, is here placed as section "a" 

 of his new genus Liburnia and on this account Kirkaldy uses it 

 to supplant Liburnia, and even the conservative Distant 

 employes its type, monoceros, as the type of Liburnia thus 

 making Stal rename his own genus which I consider unwar- 

 ranted. The fact is Stal recognized the fact that the Delphax 

 of Latreille and later authors was not and could not be the 

 Delphax of Fabricius and he was merely giving a new name to 

 that large congeries of species of which pellucida may be taken 

 as the type, as is conclusively shown by his naming '■'■Delphax 

 Auctor" as its first synonym. His inclusion of Embolophora 

 monoceros as the first section and species of Liburnia was an 

 unfortunate mistake in the light of the "first species" cult now 

 prevalent, as it is certainly distinct generically from pellucida 

 and should be eliminated at once from Liburnia. This would 

 leave that genus a large but fairly homogeneous assemblage of 

 species of world-wide distribution. 



If we retain Delphax, as I think we must, the synonomy 

 will stand: 



Delphax Fabr. , 1798; type crassicornis Fabr. 

 Synon. Arceopus Spinola, 1839. 



Asiraca Latr., 1801; type clavicornis Fabr. {Asiraca has 

 no standing in 1796.) 



Embolophpora Stal, 1853; type monoceros Stal 



Liburnia Stal, 1866; type striata Fabr. or pellucida Fabr. 

 With the subfamily name Delphacince. 



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