CICADELLOIDEA — TETTIGELLIDAE 509 



[Homalodisca] triquetra Van Duzee 1916a: 65 [Listed]^* Equals 

 [Homalodisca] vitripennis Germ. Equals [Homalodisca] coa- 

 gulata Say Equals [Homalodisca] (?) ichthyocephala Sign. 

 Equals [Homalodisca] admittens Walk. Equals [Homalodisca] 

 aurigena Walk. Equals [Homalodisca] excludens Walk. 



Homalodisca triquetra Lathrop 1917a: 121 [Listed] ^^ 



Homalodisca triquetra Pierce 1917a: 23; fig. 36 [Economics^ 

 illustrated] 



Homalodisca triquetra Van Duzee 1917b: 594 [Catalogued]^ ^^' 

 14. 15. 16. 20, 21. 22 Equals Cicada [triquetra] Fabr. Equals Tetti- 

 gonia [triquetra] Sign. Equals Ciccus [triquetra] Walk. Equals 

 Ciccus [vitripennis] Walk. Equals [Tettigonia] coagulata Say- 

 Equals Tettigonia (?) ichthyocephala Sign. Equals Tettigonia 

 vitripennis Germ. Equals [Proconia] admittens Walk. Equals 

 [Proconia] aurigena Walk. Equals [Proconia] exludens Walk. 

 Equals Proconia [vitripennis] Walk. Equals Phera [vitripennis] 

 Fowl. Equals Phera [coagulata] Stal Equals [Homalodisca] 

 ichthyocephala Sign. (?) 



Homalodisca triquetra Olsen 1918a: 2 [Listed]^*' ^^ 



Homalodisca triquetra Lathrop 1919a: 30 [Described, catalogued] 

 7, 13. 21 Equals Cicada triquetra Fabr. 



Homalodisca triquetra Lawson 1920a: 80; pi. VI, figs. 4-6 [De- 

 scribed, illustrated, catalogued] ^^ Equals Cicada triquetra 

 Fabr. Equals Tettigonia vitripennis Germ. Equals Tetti- 

 gonia coagulata Say Equals Tettigonia ichthyocephala Sign. 

 Equals Tettigonia triquetra Sign. Equals Ciccus triquetra 

 Walk. Equals Proconia admittens Walk. Equals Proconia 

 aurigena Walk. Equals Proconia excludens Walk. :17 [Eco- 

 nomics] ^^ 



Homalodisca triquetra Osborn 1921a: 6 [Listed] ^^ 



Homalodisa [sic] triquetra Sanderson and Peairs 1921a: 234; 

 fig. 195 [Economics, illustrated]^^ 



Homalodisca triquetra Hayes 1922a: 236 [Economics]^^ 



Homalodisca triquetra Readio 1922a: 230; pi. XXII, fig. 5; pi. 

 XXVI, fig. 6 [Ovipositor, described, illustrated] :229 [Com- 

 parative note] 



Phera vitripennis Herrera 1923a: 112 [Listed]^ 



H[omalodisca] triquetra Melichar 1924a: 236 [Described, cata- 

 logued]^- ^° Equals Cicada triquetra Fabr. Equals Tettigonia 

 coagulata Say Equals Tettigonia vitripennis Germ. Equals 

 Tettigonia ichthyocephala Sign. Equals Proconia excludens 

 Walk. Equals Phera vitripennis Fowl. Equals Proconia 

 aurigena Walk. Equals Proenia [sic] admittens Walk. :231 

 [Key]^' 10 :237, 238 [Comparative notes] 



