CICADELLOIDEA — EUSCELIDAE 1861 



IDeltocephalus] signatifrons Osborn 1899a: 38 [Ecology] ^ 

 : 39 [Listed] 2 



D[eltocephalus] signatifrons Kirkaldy 1904a: 177 [Com- 

 parative note] 



[Deltocephalus] signatifrons Tucker 1907a: 67 [Listed] ^ 



Deltocephalus signatifrons De Long 1916a: 47 [Catalogued] 

 Equals Deltocephalus sexmaculatus Gill, and Bak. [error] 



{Deltocephalus'] signatifrons Van Duzee 1916a: 70 [Listed] ^ 



Deltocephalus signatifrons Van Duzee 1917b: 645 [Cata- 

 logued] !• 2. 3. 6 



Deltocephalus signatifrons Lawson 1920a: 146 [Described, 

 ecology, catalogued] ^ : 138 [Key] 



Deltocephalus signatifrons Severin 1921c: 21 [Listed] ^ 



Deltocephalus signatifrons Lawson 1922c: 333 [Listed] '^ 



[Deltocephalus'] signatifrons Van Duzee 1925b: 416 [Com- 

 parative note] ^' ^^ 



[Deltocephalus] signatifrons De Long 1926d: 10; pi. V, figs. 

 14, 14a [Venation illustrated] : 101 [Ecology] 



Deltocephalus [(Hebecephalus)] signatifrons De Long 

 1926d: 60; pi. XIII, figs. 2, 2a-b; pi. XXV, fig. 2 [De- 

 scribed, illustrated, ecology, catalogued] ^' ^' ^' ^' "^^ ^^' ^2. 13. i* 

 : 59 [Key] : 59, 61, 62 [Comparative notes] : 58 

 [Listed] 



[Hebecephalus] signatifrons De Long and Sleesman 1929a: 

 91; pis. VI, VIII [$ genitalia described, illustrated] 



[Deltocephalus] signatifrons Van Duzee 1933a: 30 [Com- 

 parative note] 



H[ebecephalus] signatifrons Knowlton 1934a: 165 [Food 

 plants] 1^ 



Hebecephalus signatifrons Beamer and Tuthill 1935a: 532; 

 pi. LV, figs. 1, la-b; pi. LVII [Described, illustrated, key, 

 catalogued] ^' 2- 1^ Equals Deltocephalus signatifrons Van 

 D. : 534, 535 [Comparative notes] 



Hebecephalus signatifrons Knowlton and Allen 1936a: 272 

 [Listed] 14 



[Hebecephalus] signatrifrons [sic] De Long and Caldwell 

 1937c: 30 [Catalogued] i- 2. 4. 7. n. 12. 13. i4 



[Deltocephalus] signatifrons Essig and Usinger 1940a: 164 

 [Catalogued] 



Hebecephalus signatifrons Padley 1941a: 394 [Listed] ^ 



[Hebecephalus signatifrons] Medler 1943a: 64 Equals Del- 

 tocephalus signatifrons Van D. 

 [Hebecephalus] signatifrons De Long and Knull 1946a: 38 



