Wilson-Vickery—List of ApMdidae, 
215 
Oentaiirea jacea. 
Macrosiphum jaceae Linnaeus. 
Macrosiphum soncM Linnaeus. 
Trama troplodytes Hey den. 
Centaiu'ea maculosa 
Macrosiphum jaceae Linnaeus. 
Oentaurea melltensis. 
Aphis centaureae Koch. 
Centaurea nigra. 
Macrosiphum jaceae Linnaeus. 
Macrosiphum sonchi Linnaeus. 
Centaiirea nigrescens. 
Macrosiphum jaceae Linnaeus. 
Macrosiphum sonchi Linnaeus. 
Centaurea scabiosa. 
Aphis centaureae Koch. 
Aphis terricola Rondani. 
Macrosiphum jaceae Linnaeus. 
Macrosiphum sonchi Linnaeus. 
Centaurea solstitialis. 
Aphis terricola Rondani. 
Centaurea sphaerocephala. 
Aphis centaureae Koch. 
Centrantlius sp. 
Aphis rumicis Linnaeus. 
Macrosiphum rosae Linnaeus. 
Centranthus rubra. 
Macrosiphum centranthi Theobald. 
Cephalanthus occidentalis. 
Aphis cephalanthi Thomas. 
Cerastlum arvense. 
. .Macrosiphum cerastii Kaltenbach. 
Cerastium trlviale. 
Brachycolus stellariae Hardy. 
