Cercopoidea—Aphrophoridae 
307 
[Philaenus luecophthalmus] populi [nec Linne] de Bergevin 1913d: 96 
(3) [Listed] 22 
[Philaenus spumarius] populi [nec Linne] von Dalla Torre 1913a: 150 
[Listed] 23 
[Philaenus spumarius ] populi [nec Linne] Jensen-Haarup 1915b: 81 
[Key] 
[Philaenus leucophthalmus ] populi [nec Linne] Horvath 1916a 13 
[Listed] 24 
[Philaenus graminis] populi [nec Linne] Haupt 1917b: 177 [Key] :180 
Equals Cic[ada] flava Linne [1767] :183; PL II, Fig. 15 [Described, 
catalogued, illustrated] Equals Cercopis populi [nec Linne] Equals 
Aphr\ophora ] bif[asciata\ var. e Burm. Equals Ph[ilaenus] sp[u- 
marius] pop[uli] Edw. [nec Linne] Equals Ph[ilaenus\ sp[umarius\ 
rufescens Mel. Equals Pt[yelus\ sp[umarius] pall[idus\ Flor Equals 
Ph[ilaenus] sp[umarius ] pall[idus\ Sahib. Equals Cerc[opis\ sp[u- 
maria] pallida Zett. Equals Cerc[opis ] sp[umaria] pop[uli] Fall, [nec 
Linne] 
[Philaenus leucophthalmus ] populi [nec Linne] Horvath 1918a: 329 
[Listed] 25 To Philaenus leucopthalmus [sic] graminis De G. 
[.Philaenus graminis ] populi [nec Linne] Haupt 1919a: 170 [Key] 
[Philaenus] populi [nec Linne] Codina 1920a: 102 (3) [Listed] 26 
[Philaenus spumarius ] populi [nec Linne] Jensen-Haarup 1920a: 78 
[Key] 
[Philaenus spumarius] populi [nec Linne] Haupt 1922a: 27; Fig. 15 
[Key, illustrated] 
P[hilaenus] spumarius populi [nec Linne] Lindberg 1923a: 43 [Listed] 
[Philaenus leucophthalmus] populi [nec Linnel Prohaska 1923a: 79 
[Notes] 27 
[Philaenus spumarius] populi [nec Linne] Alfken 1924a: 464 [Listed] 28 
[Philaenus leucophthalmus] populi [nec Linne] Hof manner 1924a: 48, 
76, 78 [Ecology] 29 :68 [Listed] 29,30 
[Philaenus spumarius] populi [nec Linne] Lindberg 1924a: 41 [Listed] 31 
[Philaenus leucophthalmus] populi [nec Linne] Della Beffa 1925a: 143 
[Listed] 4 
[Philaenus spumarius] populi [nec Linne] Haupt 1925a: 12 [Listed] 32 
[Philaenus leucophthalmus] populi [nec Linne] Kupka 1925a: 105 
[Listed] 6 
Philaenus leucophthalmus populi [nec Linn6] Codina 1926a: 268 (1) 
[Listed] 33 
Philaenus spum[arius] populi [nec Linne] Haupt 1926b: 304 [Listed] 34 
[Philaenus spumarius] populi [nec Linn6] Priesner 1926a: 135 [Listed] 35 
