426 General Catalogue of the Hemiptera 



Delphacodes 



1938 Delphacodes vanduzeei Osborn, Bull. Ohio Biol. Surv. 6: 338. [Key.] 

 1938 Delphacodes deteda Osborn, Bull. Ohio Biol. Surv. 6: 337. [Key.] 



difficilis Edwards 



1888 Liburnia difficilis Edwards, Ent. Monthly Mag. 24: 197; Fig. b. England^ 

 [n. sp., illustrated.]^ Finland^ 



1889 Liburnia difficilis Edwards, Trans. Nat. Soc. Norwich 4: 706. British Isles' 

 [Listed. ]i Germany^ 



1890 Liburnia difficilis Saunders and Edwards, Cat. British Hemiptera Austria^ 

 1890: 12. [Listed. ]3 Denmark^ 



1890 Liburnia pellucida difficilis Buckton, Mon. British Cicadae 2: 49; Netherlands^ 



PL XV, Fig. 5. Wales^ 



1893 Liburnia difficilis M'Gregor, Ann. Scottish Nat. Hist. 1893: 220. Russia' 



[Listed.]io ' Scotlandi" 



1893 Liburnia difficilis M'Gregor, Ent. Monthly Mag. 29: 93. Poland" 

 [Listed.]!" Swedeni2 



1894 Liburnia difficilis Edwards, Hemip.-Homop. British Islands Pt. 2 : France^' 

 59; PI. 6, Figs. 9, 9a. [Described, comparative note, illustrated.]' Ireland" 

 :36. [Key.] 



1896 Liburnia difficilis Melichar, Cicad. Mittel-Europa :75. [Described.]^ :7l. [Key.] 



1899 Delphax pellucida difficilis Puton, Cat. H6mip. Faune Palearctique 4 Ed. :107. 

 [Listed.]' 



1900 Liburnia difficilis Strobl, Mitt. Natur. Ver. Steiermark 36: 205. [Listed.]^ 



1904 Delphax pellucida difficilis Htieber, Syst. Verz. deutschen Zikadinen :269. [Listed.]* 



1907 Delphax difficilis Oshanin, Verz. Palaeark. Hemip. 2 (2): 313. [Listed.]''* Equals 

 Liburnia difficilis Edw. Equals Delphax pellucida difficilis Put. 



1908 Delphax difficilis Saunders and Edwards, Cat. British Hemiptera 1908: 15. [Listed.]' 

 1912 Delphax difficilis Oshanin, Kat. Palaark. Hemip. :119. [Listed. ]!■* 



1914 Delphax difficilis Haupt, Ent. Jahrb. 23: 162 (4). [Ecology.] 



1915 Zztwrwid </J^c//w Jensen-Haarup, Flora och Fauna 1915: 143. [Comparative note.]* 



1916 Delphax dificilis [sic] Haupt, Zeits. Wiss. Insektenbiol. 12: 202; Fig. 3. [Parasite, 

 illustrated.] 



1922 Liburnia difficilis MacGillavry, Ent. Berichten 6: 68. [Listed.]^ 

 1925 Delphax difficilis Haupt, Mitt. Munchner Ent. Ges. 15: 18. [Notes.]* 

 1925 Delphax difficilis Brown, Ent. Monthly Mag. 61 : 63. [Listed.]^ 



1927 Delphax difficilis Poisson and Poisson, Bull. Soc. Linn. Normandie (7) 9: 143. 

 [Listed.]!' 



1928 Delphax difficilis Ivsinov, Mem. Acad. Sci. Ukraine 6: 197. [Listed.]** 



1928 Delphax difficilis Ivanov, Trav. Mus. Zool. 1928: 501. [Listed.]' 



1929 Liburnia difficilis China, Ent. Monthly Mag. 65: 250. [Listed.]' 



1930 Delphax difficilis Britten, Check List Fauna Lancashire and Cheshire 1 : 74. [Listed. ]! 

 1932 Liburnia difficilis Kusnetzov, Bull. Plant Prot. I Ser.: Ent. 5: 43. [Listed.] 



1934 Liburnia difficilis Thornley, Trans. Soc. British Ent. 1 : 82. [Listed. ]! 



1935 Delphax difficilis Halbert, Proc. R. Irish Acad. 42 (Sect. B) : 310. [Listed.]" 



1935 [Liburnia] difficilis Haupt, Tierwelt Mitteleuropas 4 (3) : 143. To Liburnia obscurella 



Boh. [error.] 

 1935 Liburnia difficilis Ossiannilsson, Ent. Tidskr. 56: 134; Fig. 18. [Notes, illustrated.]^^ 

 1935 Delphax difficilis Rapp, Beitrage zur Fauna Thiiringens 1 : 50. [Listed.]* 

 1935 Liburnia difficilis Wagner, Verh. Ver. Naturw. Heimatforschung. 24: 7. [Listed.]* 

 1935 Liburnia difficilis Wagner, Ent. Medd. 19: 163. [Notes.] 

 1937 Liburnia difficilis Kuntze, Arch. Nat. [n. f.] 6: 333, 341, 356. [Ecology.]* Equals 



Liburnia dubia Radd. [nee Kirschb.] Equals Liburnia adela Radd. [nee Flor]. 



1937 Liburnia difficilis Kontkanen, Ann. Ent. FenniciS: 149. [Listed.]^ 



1938 Delphacodes difficilis China, Ent. Monthly Mag. 74: 197. To Delphacodes obscurella 

 Boh. [error.] 



1938 Liburnia difficiUis [sic] Nast, Fragm. Faun. Mus. Zool. Polonici 3: 233 (9). [Listed.]" 



