General Catalogue of the Homoptera 
Aphrophora quadrangularis Boring 1913a: 133, 137 [Spermatogenesis] 
Lepyronia quadrangularis Shelford 1913a: 204, 208 [Ecology] 27 
Lepyronia quadrangularis Barber 1914a: 529 [Listed] 13 
Aphrophora quadrangularis Kornhauser 1914a: 243 [Spermatogenesis] 
Aphrophora quadrangularis Kornhauser 1914b: 243 [Spermatogenesis] 
Aphrophora quadrangularis Boring and Fogler 1915a: 314 [Compara¬ 
tive note] 
Lepyronia quadrangularis Boring and Fogler 1915a: 314 [Listed] 
Lepyronia quadrangularis Metcalf 1915a: 48 (16) [Listed] 38 
Aphrophora quadrangularis Harvey 1916a: 40 [Chromosome number] 
Equals Lepronia [sic] quad[rangularis\ 
Lepronia [sic] quadrangularis Harvey 1916a: 41 To Aphrophora quad¬ 
rangularis 
Lepyronia quadrangularis Osborn 1916b: 277; Figs. 40a-c, 50b [Life 
history, economics, illustrated] 12 :287 [Ecology] 12 
[Lepyronia] quadrangularis Van Duzee 1916a: 57 [Listed] 26 - 37 
Lepyronia quadrangularis Metcalf 1917a: 32; PI. I, Figs. 5, 6 [Trachea- 
tion, illustrated] :32; PL II, Figs. 15, 16 [Venation, illustrated] 
Lepyronia quadrangularis Van Duzee 1917b: 512 [Catalogued] 2 - 3 - 5 - 7 - 
8 , 9 , 11 . 12 , 13 , 14 , 15 , 16 , 17 , 20 , 21 , 22 , 23 , 24 , 25 , 28 , 29 , 30 , 31 , 32 , 34 , 38 Equals 
Cercopis [quadrangularis] Say Equals Aphrophora [quadrangularis] 
Say Equals Ptyelus [quadrangularis] Walk. 
[Lepyronia] quadrangularis Britton 1920a: 55 [Listed] 29 
[Lepyronia] quadrangularis McAtee 1920b: 172 [Key] 16 - 30 
Lepyronia quadrangularis Moore 1920a: 22 [Life history notes] 37 :23 
[Listed] 5 - 7 - 20 - 21 :24 [Food plants, life history notes] 
Lepyronia quadrangularis Osborn 1921a: 5 [Listed] 13 
Lepyronia quadrangularis Doering 1922a: 516 [Catalogued] Equals 
Ptyelus [quadrangularis] Walk. Equals Cercopis quadrangularis 
Equals Aphrophora [quadrangularis] Say :517 [Key, described] :518; 
Pis. LIV-LXII [Life history, food plants, economics, external 
morphology, illustrated] 1 - 3 - 8 - ». w, 14, ie, 19, 21, 23, 24, 25, 28, 29,30,31,32, 
33,34 
Lepyronia J^-angularis Osborn and Drake 1922a: 14 [Listed] 3 
Lepyronia quadrangularis Balduf 1923a: 165 [Listed] 25 
Lepyronia quadrangularis Boring 1923a: 91 [Cytology] 
Lepyronia quadrangularis Garman 1923a: 160; PL IX, Fig. 4 [Life 
history, notes, illustrated] 29 
[Lepyronia] quadrangularis Stearns 1923a: 221; PL IV, Fig. 31; Text 
fig. 20 (33-36) [Described, key, illustrated] 3 - 8 - 9,13, ie, 21, 23, 24, 25, 29, 
30,31,32,33,34,35,38,39,40,41,42 Equals Cercopis quadrangularis Say 
:223, 224 [Comparative notes] 
