General Catalogue of the Homoptera 
234 
Synave 1951b: 183 [Listed] 
Wagner 1951b: 45 [List of species from Bavaria] 
China 1952a: 790 [Comparative note] 
Lallemand and Synave 1952a: 12 [Catalogued, 
catalogue of species from France] 
Buchner 1953a: 78, 292, 551, 606, 701 [Symbionts] 
Marchand 1953a: 131, 147 [Ecology] 
Borror and De Long 1954a: 250; Fig. 20-4A [Mor¬ 
phology of head illustrated] 
Dlabola 1954a: 41 [Physiology of reproductive 
system] :53 [Ecology] :66 [Ecology of species 
from Czechoslovakia] :135 [Key] :137, 138 
[Comparative notes] :140 [Described, review of 
species from Czechoslovakia, catalogued] 
Equals Ptyleus [sic] (in part.) 
Smreczynski 1954a: 100 [List of species from 
Poland] 
Synave 1954b: 882 [Comparative notes, taxonomy] 
Wagner 1955b: 82 [Morphology] 
Kusnezov N. D. a: 50 [Listed] 
_ Fowler (var.) [ fuscovarius ]. See Philaenus fuscovarius var. Fowler. 
_Provancher (var.) [lineatus]. See Neophilaenus lineatus var._Provancher. 
_Provancher (var.) [ spumarius ]. See Philaenus leucophthalmus var. spumarius 
Linne. 
a Ferrari (var.) [ campestris ]. See Neophilaenus campestris var. a Ferrari. 
A Ferrari (var.) [ campestris ]. See Neophilaenus campestris var. A Ferrari. 
a Edwards (var.) [lineatus]. See Neophilaenus lineatus var. a Edwards. 
a Sahlberg (var.) [ spumarius ]. See Philaenus leucophthalmus var. spumarius Linn6. 
a Stal (var.) [ caffer ]. See Ptyelus caffer var. a St&l. 
abhreviatus Fabricius. See Neophilaenus lineatus Linn6. 
abieti Matsumura 
Ptyelus abieti Matsumura 1904a: 50; PI. II, Fig. 17 [n. sp., illustrated] 1 
Ptyelus abieti Matsumura 1907b: 116 [Catalogued] 1 ’ 2 
[Philaenus] abietis Oshanin 1908b: 410 [Catalogued] 1 ' 3 Equals Ptyelus 
abieti Mats. 
Philaenus abietis Reuter 1908a: 70 [Food plants] 3 ’ 4 :101, 114, 126 
[Ecology] :116 [Listed] 4 
P[tyelus ] abieti [Mitsuhashi] 1909a: [424] [Listed] 
P[tyelus] abieti Lallemand 1912a: 31 [Catalogued] 3 
[Philaenus] abietis Oshanin 1912a: 98 [Listed] 3 
Ptyelus abieti Matsumura 1915a: 157, 175, 181, 183 [Listed] 5 :175 
[Comparative note] 
