Macrosiphum subarcticum Robinson 1979

Victor, Eastop, F. & Blackman, Roger L., 2005, Some new synonyms in Aphididae (Hemiptera: Sternorrhyncha), Zootaxa 1089, pp. 1-36 : 14

Macrosiphum subarcticum Robinson 1979 = Macrosiphum valerianae (Clarke 1903)

Paratypes of M. subarcticum , described from Epilobium angustifolium in northern Manitoba, agree fully with other material from this host in Canada in the BMNH collection identified by several authors as M. valerianae . Types of valerianae are lost, and Robinson suggested that it should be regarded as a nomen dubium, but there is no adequate justification for this, and this species is relatively well­known as valerianae in western USA (e.g. Palmer, 1952; Antolin & Addicott, 1988).