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  • A.G. Robinson (a1)

A key is given for 4 subgenera in the aphid genus Uroleucon Mordvilko in America north of Mexico. An annotated list and keys are presented for 44 species of the subgenus Uroleucon, 12 species of the subgenus Uromelan Mordvilko, and 1 species of the subgenus Satula Olive. Nine new species are described in the subgenus Uroleucon: Uroleucon (Uroleucon) alaskense n. sp., U.(U.) arnesense n. sp., U.(U.) boreale n. sp., U.(U.) chani n. sp., U.(U.) deltense n. sp., U.(U.) elephantopicola n. sp., U.(U.) ivae n. sp., U.(U.) maximilianicola n. sp., and U.(U.) vancouverense n. sp. Two subspecies, U. (Uromelan) illini subspecies crudae and sangamonense, are listed here merely as color forms of illini (Hottes and Frison), not subspecies. Uroleucon (Uroleucon) muralis Buckton, U. (Uromelan) compositae (Theobald), and U.(U.) solidaginis (Fabricius) have been listed as present in North America, but there appear to be no authentic records of their occurrence. Uroleucon (Uroleucon) pseudochrysanthemi (Olive) is declared to be a synonym of U.(U.) lanceolatum Patch, and U. (Uromelan) squarrosum (Sanborn) as a nomen dubium.

On a produit une clé pour les 4 sous-genres du genre aphidien Uroleucon Mordvilko en Amérique du Nord, nord du Mexique. On fournit une liste commentée et des clés pour les 44 espèces du sous-genre Uroleucon, les 12 espèces du sous-genre Uromelan Mordvilko, et la seule espèce du sous-genre Satula Olive. On décrit 9 espèces nouvelles pour le sous-genre Uroleucon: Uroleucon (Uroleucon) alaskense n. sp., U. (U.) arnesense n. sp., U. (U.) boreale n. sp., U. (U.) chani n. sp., U. (U.) deltense n. sp., U. (U.) elephantopicola n. sp., U. (U.) ivae n. sp., U. (U.) maximilianicola n. sp., et U. (U.) vancouverense n. sp. On liste 2 sous-espèces, U. (Uromelan) illini sous-espèces crudae et sangamonense, seulement en tant que chromoformes de illini, non pas en tant que sous-espèces. Uroleucon (Uroleucon) muralis Buckton, U. (Uromelan) compositae (Theobald) et U. (U.) solidaginis (Fabricius) ont été rapportées présentes en Amérique du Nord, mais il ne semble pas y avoir de mention authentique de leur présence. On déclare Uroleucon (Uroleucon) pseudochrysanthemi (Olive) comme synonyme de U. (U.) lanceolatum Patch, et U. (Uromelan) squarrosum (Sanborn) comme nomen dubium.

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The Canadian Entomologist
  • ISSN: 0008-347X
  • EISSN: 1918-3240
  • URL: /core/journals/canadian-entomologist
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