66 BULLETIN 276^ U. S. DEPARTMENT OF AGRICULTURE. 
1912. Morrison, Harold. A preliminary list of the plant-lice or Aphididse of 
Indiana. In Fifth Annual Report of Indiana State Entomologist f. 1911- 
1912, p. 195-236, 33 (unnumbered) fig., 3 pi. 
Page 232. Occurrence of MacrosipJium pisi in Indiana, injuries and remedies. 
1912. O'Kane, W. C. Injurious Insects. 414 p., 606 fig. New York. 
Page 200. Brief account of MacrosipJium pisi as a pest on peas. 
1912. Sanborn, C. E. Garden and truck crop insect pests. Okla. Agr. and Mech, 
Col. Agr. Expt. Sta., Bui. 100, 76 p., 70 fig. 
Page 43. Brief account of Macrosiphum pisi, including remedies. 
1912. Sanderson, E. D. Insect Pests of Farm, Garden, and Orchard, xii+684 p., 
513 fig. 
Page 322. General account of the pea aphis (Macrosiphum pisi), its natm-al enemies and 
control. 
1913. Davis, J. J. The Cyrus Thomas collection of Aphididae, and a tabulation of 
species mentioned and described in his publications. 111. State Lab. Nat. 
Hist. BuL, V. 10, art. 2, p. 97-121, pi. 6-7. 
Page 98. Examination of type slide of species described by Thomas as Siphonophora pisi. 
1913. EssiG, E. 0. Injurious and beneficial insects of California. Mo. Bui. Cal. State 
Com. Hort., v. 2, nos. 1 and 2, p. xxxi+367, 321 fig., Jan. and Feb. 
Pages 73, 203. Brief notes on Macrosiphum destructor and remedies. 
1913. Hewitt, C. Gordon. Report of the Dominion Entomologist. In Canada 
Expt. Farms Rpts. f. 1912, p. 173-187, 1 pi. 
Page 184. The destructive pea aphis reported injuring garden crops. 
1913. LovETT, A. L. Insect pests of truck and garden crops, 1913. Oregon Agr. 
Col. Bui. 91 (Ext. Ser., no. 4), 39 p., 12 fig. 
Page 16. Brief account of Macrosiphum pisi and means of control. 
1913. Morrill, A. W. Notes on important insects of the year. In Fifth Annual 
Report of the Arizona Commission of Agriculture and Horticulture, June 
30, 1913, p. 33-48, fig. 7-11. 
Page 37. Reports injuries to garden peas by Macrosiphum pisi. Remedies. 
1913. Wilson, H. F. Notes on Podahrus pruinosus. In Jour. Econ. Ent., v. 6, 
p. 457^59, 1 fig., December. 
Notes on the beetle, Podahrus pruinosus, which has proved efficient in destroyhig aphidids 
among other species Macrosiphum pisi. Brieflj^ describes various stages of the beetle. 
1914. Britton, W. E., and Walden, B. H. Field tests in controlling certain insects 
attacking vegetable crops. In 13th Rpt. State Ent. (Ann. Rpt. Conn. 
Agr. Expt. Sta., pt. 3) f. 1913, p. 232-237. 
Page 235-237. Reports Macrosiphum pisi destructive to peas past season and experiments 
in methods of control. 
1914. C^sAR, L. Insects of the season in Ontario. In 44th Ann. Rpt. Ent. Soc. 
Out. f. 1913, p. 49-53. 
Page 52. Macrosiphum pisi was troublesome in a few localities in southwestern Ontario 
in 1913. 
1914- Smith, L. B. Control of green pea apliis in 1914. (Macrosiphum pisi.) — A 
jjreliminary report. Virginia Truck Sta. Bui. 13, p. 301-312, fig. 66. 
Remedies, based on recent spraying experiments, for the control of Macrosiphum pisi 
as a pest to peas are given. 
1915. Branigan, E. J. [Insect Notes.] In Mo. Bui. California State Com. Hort., 
V. 4, no. 5-6, p. 285, May-June. 
Macrosiphum drslruclor reported damaging pea crops in Alameda County. 
