No. 34-] HEMIPTERA OF CONNECTICUT: APHIDIDAE. 309 



M. pisi (Kaltenbach). Aphis pisi Kaltenbach. Nectar ophora 

 destructor Johnson. 



Mon. der Pflanz., 23, 1843. 



This species in collections and in literature has been sometimes 

 confused with solanifolii iVshmead. For account and figures see 

 Davis (1915a). 



New Haven, July, 1899; Plantsville, July, 1899; Wolcott, July, 1899; 

 Bridgeport, 24 July, 1901 ; sweet pea, New Haven, 20 July, 1909 (A. I. B.) ; 

 Hamden, 13 June, 1913. 



M. pseudocoryli Patch. 



Me. Agr. Expt. Sta., Bull. 282, 212, 1919. 

 M. pseudodirhodum Patch. 



Me. Agr. Expt. Sta., Bull. 282, 213, 1919. 

 M. pseudorosae Patch. 



Me. Agr. Expt. Sta., Bull. 282, 206, 1919. 

 M. ptericolens Patch. 



Me. Agr. Expt. Sta., Bull. 282, 210, 1919. 

 M. purpurascens (Oestlund). Nectarophora purpurascens Oest- 

 lund. Myzus thalictri Williams. 



Aphid, Minn., 81, 1887. 



For discussion and figures of this Thalictrum aphid see Davis 

 (1911a). 

 M. rosae (Linnaeus). Aphis rosae Linnaeus. Rose Aphid. 



Syst, Nat, Edn. 10, 452, 1758. 



For description and figures see Theobald (1913a) and Patch 

 (1914b). 



On rose, New Haven, 7 June, 1909; Aug. 31, 1909 (A. I. B.). 

 M. rudbeckiae (Fitch). Nectarophora rudbeckiae Fitch. (PI. 

 viii, I.) 



Homop. N. Y. St. Cab., 66, 185 1. 



For figures see Gillette (1911b). 



On golden glow, Whitneyville, 11 July, 1904; Bristol, 15 July, 1915. 

 M. sanborni Gillette. Siphonophora chrysanthemicolens Williams. 



Can. Ent, xl, 65, 1908. 



For description and figures of this aphid see Gillette (1908c). 



On Chrysanthemum, New Haven, 26 July, 1909 (A. I. B.). 

 M. sonchi (Linnaeus). Aphis sonchi Linnaeus. (Fig. 29, i.) 



Syst, Nat, Edn. 12, 735, 1767. 



For description and figures see Theobald (1913a). 



On Lactuca, New Haven, 6 July, 1909 (A. I. B.). 

 M. solanifolii (Ashmead). Siphonophora solanifolii Ashmead. 

 6'. citrifolii Ashmead. Potato aphid. (PI. viii, 2.) 



Can. Ent., xiv, 92, 1882. 



It is probable that this species has at least several synonyms. 



