170 Wisconsin Academy of Sciences, Arts, and Letters. 
troglodytes, Trama Heyden, 1837. Ent. Beitr. Mus. Senk., II, p. 
293. 
Achillea millefolium, Centaurea jacea, Gichorium endiva, C. inty- 
bus, Cirsium arvense, Crepis biennis, Cynara cardunculus, 
Cytisus scoparius, Hieracium pilosella, Lactuca scariola, Leon- 
tondon sp., Onopordon acantium, Silybum marianum, Sonchus 
arvensis, S. asper, oleraceus. Taraxacum offlcinale. 
tropicalis, Pterochlorus Van Der Goot, 1916. Indian Museum 
Notes, XII, p. 3, fig. 
Pood plant unknown. 
443. 
truncata. Aphis Hausmann, 1802. Illigers Insekten Kunde, I, p. 
Salix caprea. 
tuberculata, Aphis Patch, 1914. Me. Agr. Exp. Sta. Bui. No. 233, 
p. 261, fig. 
Prunus serotina. 
tuberculata, Callipterus (Heyden), 1837. Ent. Beitr. Mus. Senk., 
II, p. 296. Aphis. 
Betula alba, B. nigra. 
tuberculostemmata, Protolachnus Theobald, 1915. Bui. Ent. Re¬ 
search, VI, p. 145, fig. 
Pinus sp. 
tuberosae, Aphis Boyer de Ponscolombe, 1841. Ann. Soc. Ent. 
France, X, p. 180. 
Cynoglossum sp., Cyperis laevigatus, Funkia subcordata, Polian- 
thus tuberosa. 
tujae, Lachniella Del Guercio, 1909. Redia, V. p. 309, fig. 
''Tuja’^ occidentalis. 
tujafilma, Lachniella Del Guercio, 1909. Redia, V. p. 311, fig. 
“Tuja” occidentalis. 
tulipae, Aphis Boyer de Ponscolombe, 1841. Ann. Soc. Ent. 
Prance, X, p. 167. 
**Chonodoxia^’ sp., Tulipa sp. 
tulipae, Macrosiphum (Monell), 1879. Bui. U. S. Geol. & Geog. 
Surv. Terr. V, No. 1, p. 19. Siphonophora. 
Tulipa gesneriana. 
