460 
GENERAL CATALOGUE OF THE HOMOPTERA 
Paratiicentrus 
Centrotus 
Paratricentrus 
Centrotus 
Leonardi 1927a: 26 [List of species from Italy] 
Perrier 1927a: 1318 [Xotes] 
Poisson and Poisson 1927a: 134 [List of species from 
Normandy] 
Schulze, Kiikenthal, and Heider 1927a: 587 [Cata- 
logued] 
Filipieff 1928a: 148 [Key] :149 [Listed] 
Kato 1928d: 115 [gen. n.] 
Haupt 1929c: 225, 226; Figs. 29a, 31 [Illustrated] 
Luigioni 1929a: 218 (20) [List of species from Italy] 
Buchner 1930a: 527 [Symbionts] 
Goding 1930a: 90 [Comparative notes] 
Imms 1930a: 357 [Listed] 
Kato 1930a: 283 [Key] :285 [Catalogued, catalogue 
of species from the Japanese Subregion] 
de Seabra 1930a: 309 [Xotes] 
Goding 1931a: 304 [Key] Equals Beaufortiana Dist. 
Brues and Melander 1932a: 108 [Listed] 
Enderlein 1932a: 192 [Key] 
Goding 1932a: 215 [Key to species from Africa, cata- 
alogued] Equals Beaufortiana Dist. 
Weber 1933a: 658 [Listed] 
Acloque 1934a: 402 [Key to species from France] 
Imms 1934a: 375 [Listed] 
Haupt 1935a: 153 [Key] 
Karl 1935a: 136 [Listed] 
Pelaez 1935a: 43 [Xotes, new species from Africa] 
Remy-Perrier 1935a: 89 [Listed] 
Wagner 1935a: 11 [List of species from Northern 
Germany] 
Wu 1935a: 61 [Catalogued, catalogue of species from 
China] 
Metcalf and Bruner 1936a: 919 [Nomenclature, 
catalogued] 
Poisson 1936a: 2 [Listed] 
Ribaut 1936b: 6 [Morphology of thorax] 
Kato 1937b: 79 (3) [Key] :81 (5) [Catalogued, cata- 
logue of species] 
Kuntze 1937a: 348 [Ecology] :356 [Ecology of species 
from Mecklenburg] 
Kuntze 1937b: 23 [Ecology of species from Mecklen- 
burg] 
Pflugfelder 1937a: 58 [Morphology of head] 
