130 Wisconsin Academy of Sciences, Arts, and Letters. 
*pmi, Macrhyiichus ? 1913. Haup p. 45, Mitt. ent. Ges. Hail 
5-7. 
Food plant? 
pini, Rhizobiiis Burmeister, 1835. Hand, der Entomologie, H, p. 
87. 
Finns sylvestris. 
piiiicola, Ciiermes ‘Ctiolodkovsky, as a var. of C. pini Koch which 
see. 
pinicola, Lachims Kaltenbach, 1843. Mon. der Pflanzenlause, p. 
154. 
Larix decidua, Picea ahies, Finns ''mughus'’, P. sylvestris. 
pinicola, Mindarus (Thomas), 1879. Eighth Kept. State Ent. Ill., 
p. 137. Scliizoneura. 
Finns insignis, P. ponderosa, P. strodus, Zea mays. 
pinicolens, Chaitophorus Fitch, 1851. Kept. Reg. Univ. State N. 
Y. Cab. Nat. Hist. p. 66. 
Finns sp. 
pinicorticis, Chermes (Fitch), 1855. First Kept. Nox. & Ben. In¬ 
sects N. Y. p. 167. Coccus. 
Finns laricio, P. pinaster, P. '‘pinastu-marithna'’, P. strohus, Finns 
sylvestris. 
pinifoliae, Chermes Fitch, 1858. Fourth Kept. Nox. & Ben. In¬ 
sects N. Y., p. 741. 
Picea alba, P. mariana, P. rubra, Finns strobus. 
pinihabitans, Lachnus Mordwilko, 1895. Rab. Lab. Zool. Kab. 
Varch. Univ., p. 118. 
Finns sylvestris. 
For description in German see Zool. Anz. XVIII, 1895, p. 98. 
piniphila, Lachnus (Ratzeburg), 1844. Die Forst-Insecten, III, p. 
219. Aphis. 
Finns sp. 
pini-radiatae, Lachnus Davidson, 1909. Jour. Econ. Ent. II, p. 
299. 
Finns insignis. 
piperis, Aphis Kittel, 1827. Mem. Soc. Linn. Paris, V, p. 152. 
Piper sp. 
