ACHILIXIUS, A NEW GENUS, CONSTITUTING A NEW 

 FAMILY OF THE FULGOROIDEA (HOMOPTERA) 



By F. MuiR 

 Of the Hawaiian Sugar Planters' Experiment Station, Honolulu 



In 1914 Melichar described a Philippine homopteron as Syn- 

 tames tubulifer. 1 In 1917 I rejected this species from the 

 Derbidae 2 because of the long apical joint of the rostrum and 

 suggested that it represented a new genus of Cixiidae. 



I have recently been reconsidering the classification of the 

 Fulgoroidea, with the result that I am unable to place this 

 species in either the Cixiidse or the Achilidae, although it has 

 certain characters of both of these families. The venation 

 of the tegmen would place it in the Achilidae, the claval vein 

 running into the apex of the clavus which is roundly closed; 

 but the male genitalia are quite different from all of the 

 Achilidae with which I am acquainted. The general facies of 

 the insect also differs considerably from that of the Achilidae, 

 the body not being flattened, and the tegmina are fairly steeply 

 tectiform. While the male genitalia might find a place in the 

 Meenoplinae (Cixiidse) and the abdominal appendages are similar 

 to those found in Benna and Bennaria, the venation is not of 

 the cixiid type. The type of male genitalia found in the Der- 

 bidae is distinct from that of all other fulgorids and will not 

 allow of the species under consideration being placed therein. 

 To place it in any one of these three families would only lead 

 to confusion by breaking down good family characters. There- 

 fore, I consider it better to place it in a family by itself whose 

 nearest relationship would be with the Meenoplinae (Cixiidae). 

 Family ACHILIXIIDiE novum 

 Genus ACHUJXITJS novum 



Vertex and face in profile forming a curve without any divi- 

 sion between them; in dorsal view the vertex is much wider 



