1Cornelius,M.and Barlow,C.A.Effect of aphid consumption by larvae on development and reproductive efficiency of a flower fly ,syrphus corollae (Diptera:syrphidae) [J].Can.Ent.,1980,112 (20):989～992.
2Barlow C.A.On the biology and reproductive capacity of syrphus corollae F.in the laboratory [J].Ent.exp.appl.,1961 (4):91～100.
3Barlow C A. On the biology and reproductive capacity of syrphus corollae F. in the laboratory [J]. Ent. exp. appl., 1961 (4): 91- 100.
4Cornelius M. and Barlow C A. Effect of aphid consumption by larvae on development and reproductive efficiency of a fiower fly, syrphus corollae ( Diptera: syrphidae) [ J ].Can. Ent., 1980, 112 (20): 989-992.
