268 GENERAL CATALOGUE OF THE HOMOPTERA 



Euscelis extrusus Van Duzee 1917b : 656 [Catalogued] x - 2 - 4 - 5 - 

 e, 7, ii, i2, i4, is, 19 Equals Athysanus [extrusus] Van D. 

 Equals Athysanus venosus Osb. 

 [Euscelis'] extrusus Van Duzee 1919a : 4F, 5F [Comparative 



notes] 

 [Euscelis] extrusus Britton 1920a : 50 [Listed] 2 

 Euscelis extrusus Lawson 1920a : 172 [Described, catalogued, 

 ecology] 6 Equals Athysanus extrusus Van D. : 167 

 [Key] " 

 E[uscelis] extrusus Sanders and De Long 1920b: 16, 17 



[Comparative notes] 

 E[uscelis] etrusus [sic] Olsen 1921a: 37 [Notes] 

 Euscelis extrusus Severin 1921c: 21 [Listed] 20 

 Euscelis extrusus Lawson 1922c: 334 [Listed] 6 

 Euscelis extrusus Osborn 1922c : 41 [Ecology] * 

 E[uscelis] extrusus De Long 1923a: 120 [Described, cata- 

 logued] 2 Equals Athysanus extrusus Van D. Equals 

 Athysanus venosus Osb. : 118 [Key] 

 [Euscelis] extrusus Buys 1924a : 62 [Key] 1 

 E [uscelis] extrusus Johnson 1927a : 35 [Listed] 15 - 21 

 Euscelis extrusus Stearns 1927a: 14 [Listed] 22 

 E [uscelis] extrusus Leonard 1928a: 167 [Listed] L > 23> 24 

 Euscelis extrusus Osborn 1928b : 294 ; figs. 67a-d [Described, 



illustrated] 25 : 291 [Key] : 371 [Listed] 2B 

 Euscelis extrusus Ball 1929a : 7 [Comparative note] 

 Euscelis extrusus Sleesman 1929a : 102 ; pis. II, VII, IX [De- 

 scribed, catalogued, illustrated, key, ecology] x - 2 ' 1!) ' :tl 

 Equals Athysanus extrusus Van D. : 137 [Internal mor- 

 phology of $ genitalia] : 141, 142 [Ecology] : 103, 107 

 [Comparative notes] 

 Euscelis extrusus Bird 1930a: 432 [Ecology] 26 

 Euscelis extrusus Hendrickson 1930a: 85 [Ecology] 7 

 Euscelis extrusus Howe 1930a : 326 ; pi. IV, fig. 38 [Morphol- 

 ogy of tarsus, illustrated, food plants] 

 E [uscelis] extrusus Johnson 1930a : 35 [Listed] 27 > 28 

 Euscelis extrusus Lowry 1933a : 72 [Ecology] 4 

 [Euscelis] extrusus De Long and Caldwell 1937c : 37 [Cata- 

 logued] 31 

 E [uscelis extrusus Procter 1938a: 79 [Ecology] 1B - 21 

 Euscelis extrusus Brown 1939a: 667; pi. 2, fig. 15 [Illus- 

 trated] 29 

 [Athysanus] extrusus Essig and Usinger 1940a : 164 [Cata- 

 logued] 



