No. 34.] HEMIPTERA OF CONNECTICUT: APHIDIDAE. 297 



A. sedi Kaltenbach. 

 Mon der Pflanz., 63, 1843. 

 An American record of this aphid is given by Patch (1911a). 



A. setariae Thomas.* Aphis scotti Sanderson. 

 111. St. Lab. Nat. Hist, Bull. 2, 5, 1877. 

 This aphid is recorded from plum and from grasses. 



A. spiraecola Patch. 



Me. Agr. Expt. Sta., Bull. 233, 270, 1914. 



Aphis spiraeella (1910b). Figured by Patch (1914b). 



On Spiraea, New Haven, 18 June, 1901 (W. E. B.) ; on Spiraea Van 

 Houteii, New Haven, 7 July, 1909 (A. I. B.). 



A. spiraephila Patch. 



Me. Agr. Expt. Sta., Bull. 233, 270, 1914. 



This common Spiraea aphid is described and figured by Patch 

 (1914b). 



A. symphoricarpi Thomas. 



111. St. Lab. Nat. Hist., Bull. 2, 12, 1877. 



This aphid of snow-berry has not received much attention in 

 literature. 



A. tuberculata Patch. 



Me. Agr. Expt. Sta., Bull. 233, 261, 1914. 



This is a conspicuous red and black aphid on black cherry. 



A. varians Patch. 



Me. Agr. Expt. Sta., Bull. 225, 56, 1914 

 A Ribes aphid. 



A. vernoniae Thomas. (Fig. 31, 8.) 

 111. St. Lab. Nat. Hist, Bull. 2, 10, 1877. 



A. viburniphila Patch. 



Me. Agr. Expt. Sta., Bull. 256. 



This common aphid on Viburnum has been widely represented 

 in collections for years. 



On Viburnum opulus, New Haven, 12 June, 1912 (H. D. Clark) ; on 

 Viburnum plicatum, New Haven, 20 May, 1913 (W. E. B.). 



A. yuccae Cowen. Aphis yucciola Williams. 

 Hemip. Col., 122, 1895. 



This species is figured by Davis (1911a). 

 On Yucca, New Haven, 12 July, 1909 (A. I. B.). 



♦This species is now known as Hysteroneura (Heteroneura) (Aphis) 

 setariae (Thomas). 



