436 GENERAL CATALOGUE OF THE HOMOPTERA 



Elmpoasca] nigra nigroscuta Wolfe 1955c: 14, 27 [Food 

 plants] ^ 



Localities : ' Colorado. ^ Rocky Mountain States. ' Utah. " Nevada. 

 ° British Columbia. " Washington. 



nigra var. pulchella Gillette and Baker. 



Empoasca pulchella Gillette and Baker 1895a: 109; 4 figs. [n. 



sp., illustrated, food plants] ^ 

 Empoasca pulchella Gillette 1898a: 724 [Key] : 729; figs. 53, 



54, 55, 56 [Described, illustrated, catalogued] 

 Empoasca pulchella Gillette lS9Sc: 31 [Listed] 

 [Empoasca] pulchella Baker 1899a: 90 [Notes] 

 [Empoasca] pulchella YsmBuzee 1916a: 76 [Listed] ^ 

 Empoasca pulchella Gibson 1917a: 166 [Listed] ^ 

 Empoasca pulchella Ysiii'Duzeel917h: 704 [Catalogued]^ 

 Empoasca pulchella Hartzell 1923a: 97 [Key] : 105 [De- 

 scribed, food plants] ^ 

 [Empoasca (Hebata) nigra] pulchella De Long 1931b: 32 



[Key] : 34 [Described, catalogued] ^ : 57 [Listed] 

 [Empoasca (Kyhos)] pulchella De Long 1931b: 27 [Com- 

 parative notes] 

 [Empoasca nigra] pulchella De Long and Caldwell 1937c : 63 



[Catalogued]^ 

 [Empoasca (Hebata) nigra] pulchella De Long and KnuU; 



1946a: 71 [Catalogued] ^ 

 [Empoasca (Hebata) nigra] pulchella Oman 1949a : 86 [Cat- 

 alogued] To [Empoasca (Hebata) ] nigra 

 [Empoasca (Hebata)] pulchella Oman 1949a: 86 [Cata- 

 logued] To [Empoasca (Hebata)] nigra 



Localities : ^ Colorado. ^ Rocky Mountain States. ^ Nova Scotia. 



nigra var. robusta Gillette 



Empoasca robusta Gillette lS9S8i: 7S9 [n.svt.]"^ : 725 [Key] 

 Empoasca robusta Gillette 1898c: 31 [Listed] 

 [Empoasca] robustaYdJi Duzee 1916a: 76 [Listed] ^ 

 Empoasca robusta Van Duzee 1917b : 705 [Catalogued]^ 

 Empoasca robusta Hartzell 1923a: 97 [Key] : 108 [De- 

 scribed] ^' ^' * 

 E[mpoasca] robusta De Long 1931b: 33 To Empoasca 



[(Hebata)] nigra typhlocyboides Gill, and Bak. 

 [Empoasca (Hebata)] robusta De Long 1931b: 57 To [Em- 

 poasca (Hebata)] nigra typhlocyboides 

 [Empoasca] robusta De Long and Caldwell 1937c: 63 To 

 [Empoasca nigra] typhlocyboides Gill, and Bak. 



