266 Wisconsin Academy of Sciences^ Arts, and Letters. 
Lilium sp. 
Aphis sinensis Del Guercio. 
Macrosiphum lilii Monell. 
Macrosiphum pelargonii Kaltenbach. 
LiBum candidum. 
Aphis gossypii Glover. 
Aphis Ulicola Williams. 
Aphis lilii Lichtenstein. 
Macrosiphum eircumflexa Buckton. 
Rhopalosiphum persicae Sulzer. 
Limnanthemum nymphoides. 
Siphocoryne nymphaeae Linnaeus. 
Linaria canadensis. 
Aphis maidi-radicis Forbes. 
Linaria cymbalaria. 
Aphis cymhalariae Schouteden. 
Aphis linariae Lichtenstein. 
Linaria vulgaris. 
Macrosiphum linariae Koch. 
Liotris sp. 
Siphocoryne capreae Fabricius. 
Lippia citriodora. 
Myzus riMs Linnaeus. 
Myzus targioni Del Guercio. 
Liriodendron tulipifera. 
Macrosiphum liriodendri Monell. 
Macrosiphum liriodendri rufa Monell. 
Rhopalosiphum tulipae Thomas. 
Lithospermum arvense. 
Macrosiphum jaceae Linnaeus. 
Lithospermum fruticosum. 
Macrosiphum jaceae Linnaeus. 
Lithospermum officinale. 
Aphis cardui Linnaeus. 
Macrosiphum jaceae Linnaeus. 
