THE PEA APHIS WITH RELATION TO FORAGE CROPS. 
61 
1903a. Felt, E. P. lmj)ortaiice of injurious inserts introduced from abroad. In 
Report of the State entomologist on injurious and other insects of the State 
of New York for 1902 (X. Y. State Mus. Bui. 64), p. 116-126. 
Page 122. Mentions Nectarophora pisi as an introduced species responsible for losses to 
pea growers in the Atlantic States. 
*1903b. Felt, E. P. Importance of injurious insects introduced from abroad. In 
Proc. Soc. Prom. Agr. Sci., 24th Ann. Meet., p. 39-48. 
1903. Fletcher, James. Report of the entomologist and botanist. Canada Ex])t. 
Farms Rpts. f. 1902, p. 169-201, 5 fig., 1 pi. 
Page 179. Brief account of the destructive pea aphis. Worst attack the past season was 
on grass peas, hairy vetch, and field peas. 
1903. Quaintance, A. L. Entomological notes from Maryland. U. S. Dept. Agr., 
Div. Ent., Bui. 40, p. 47-50, fig. 2. 
Page 49. Xectarophora pisi was not injurious to peas past season (1902). Growers practice 
early planting to avoid injury. 
1903. Smith, J. B. Report of the entomologist. N. J. Agr. Expt. Sta. Rpt. f. 1902, 
p., 425-508, 13 fig. 
Page 425. Reports absence of pea louse in 1902, except on very late peas. 
1904a. Britton, W. E. Third report of the State entomologist. Conn. Agr. Expt. 
Sta. Rpt. f. 1903, pt. 3. p. 199-286, fig. 27^2, 8 pi. 
Page 212. Nectarophora pisi less abundant in 1903 than in 1902, though some injury to 
late peas. 
1904b. Brittox, W. E. Insect notes from Connecticut. U. S. Dept. Agr., Div. 
Ent., Bui. 46, p. 105-107. 
Page 105. Nectarophora pisi less abundant than in 1902, but many late peas were injured. 
*1904. Felt, E. P. Pea louse. In Country Gent., v. 69, no. 2673, p. 369. April 21. 
Methods of controlling Nectarophora pisi. 
1904. Fletcher, James. Insects injurious to Ontario crops in 1903. In 34th Ann. 
Rpt. Ent. Soc. Ontario f. 1903, p. 62-71, fig. 22-26. 
Page 64. Reports injury to field and grass peas by the pea aphis. 
1904. Pergaxde, Theo. On some of the aphides affecting grains and grasses of the 
United States. U. S. Dept. Agr., Div. Ent., Bui. 44, p. 5-23, 4 fig. 
Page 21. The clover plant louse Macrosiphum trifolii is here described as new. Reports 
what he considers same species from wheat ( Triticum vulgare), oats (A vena saliva), red clover 
( Trifolium pratensis), strawberry, sow-thistle (5oncft us oleraceus), and dandelion ( Taraxacum 
dens-leonis). 
1904-1906. Sanborn*, C. E. Kansas Aphididae •with catalogue of North American 
Aphididae and with host-plant and plant-host list. Pt. I-II. In 
Kans. Univ. Sci. Bui., v. 3, no. 1, p. 1-82, 22 pi., July, 1904, and v. 3, 
no. 8, p. 225-274, April, 1906. 
Describes winged viviparous female of Macrosiphum p/sj'and reports taking it on rose. 
In the host plant catalogue the following hosts of ^^acrosiphum pisi are given: Capstlla 
bursa-pastoris, cultivated heet , Lathyrus odoralus, cultivated pea, Pisum sativum. Spiraea 
vXmariae, Trifolium repens, Urtica gracilis, and Urtica dioica. 
1904. Sanderson, E. D. Insects of 1903 in Texas. U. S. Dept. Agr., Div. Ent.. 
Bui. 46, p. 92-96. 
Page 90. Reports injury to garden peas in Texas by Nectarophora pisi. 
1904 Smith, J. B. Report of the entomologist. In Rpt. Ent. Dept. X. J. Agr. Col. 
Expt. Sta. f. 1903, p. 557-659, 32 figs. 
Page 563. Late peas were badly infested with the pea-louse. 
