108 Wisconsin Academy of Sciences, Arts, and Letters. 
malvaet Macrosiphum (Mosley), Gardners Chronicle, I, p. 684. 
Aphis. 
Calla sp., Malva sp. 
malvae, Myzus Oestlund, 1886. Aphididae of Minnesota, p. 31. 
Malva rotundifolia. 
marginata, Forda Koch, 1857. Die Pflanzenlause Aphiden, p. 311, 
fig. 
Grass. 
marginella, MonelUa (Fitch), 1855. First Kept. Nox. & Ben. In¬ 
sects N. Y., p. 166. Aphis. 
Cary a sp. 
marginipennis, Aphis Haldeman, 1844. Proc. Bost. Soc. Nat. Hist., 
I, p. 168. 
Piiius ecMnata. 
marsupialis, Pachypappa Koch, 1857. Die Pflanzenlause Aphiden, 
p. 270, fig. 
Populus alia, P. nigra, P. pyramidalis. 
martini, Macrosiphum (Cockerell), 1903. Can. Ent., XXXV, p. 
169. N ©ctarophora. 
Eriogonum ligusticum, Frasera speciosa, Helenium hoopesii, Ligus- 
ticum sp., Potentilla hippiana, Rudleckia Jiirta, Zygadenus- 
nuttallii. 
marutae, Aphis Oestlund, 1886. Aphididae of Minnesota, p. 40. 
Anthemis cotula. 
matricariae, Myzus Macchiati, 1882. Bui. Ent. Soc. Ital., XIV, p. 
245. 
Matricaria cJiamomille. 
maydis, Sipha Passerini, 1860. Gli Afidi, p. 38. 
Arena sativa, Holcus mollis, Hordeum murinum, H. vulgare, Lilium 
multiflorum, L. perenne, L. temuelntum, Sorghum halepensis, 
8. saccharatum, Triticum spelta, Zea mays. 
maydis Sipha var. aveuae, Del Guercio, 1905. Redia, II, p. 144, 
fig. 
Hordeum murinum. 
*mayeri, Aphis Gmeln, 1788. Syst. Nat. 1, part 4, p. 2211. 
