3IO CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [BulL 



It has been confused with M. pisi in collections and literature. It 

 is best known in the spring on rose bushes and in the east on 

 potatoes during the summer though it has a wide range of food 

 plants. An account with figures of this aphid is given by Patch 

 (1915c). See also Patch (1921a). 



On potato, Fairfield, 1903; New Haven, 1909; Mystic, 18 July, 1912 

 (A. L. Beebe) ; Stonington, 18 July, 1912; Saugatuck, 16 July, 1914; or 

 Clematis crispa, New Haven, 18 June, 1901 (W. E. B.) ; on tobacco, South 

 Glastonbury, 27 July, 1904 (W. E. B.) ; on Physalis pubesccns, Meriden, 

 21 Sept., 1908 (W. E. B.) ; on Solanum Psendocapsicmn, New Haven. 27 

 July, 1909 (A. I. B.) ; on tobacco, New Haven, 22 July, 1909 (A. I. B.) ; 

 on tomato, New Haven, 26 July, 1909 (A, I. B.) ; on beet. New Haven, 30 

 July, 1909 (A. I. B.) ; on squash, New Haven, 21 July, 1909 (A. I. B.); 

 on lettuce. New Haven, 22 July, 1909 (A, I. B.) ; on Cclastrus scandens 

 Windsor, 19 June, 1912 (Mrs. Mary Allen) ; on squash. New Haven, 8 July, 

 1914 (M. P. Z.) ; on Asclepias sp., New Haven, 29 June, 1916 (B. H. W.). 



M. tanaceti (Linnaeus). Aphis tanaceti Linnaeus. (Fig. 29, 2 

 and 3.) 

 Faun. Suec, 260, 1761. 

 For brief description and figures see Gillette (1911b). 



On tansy. New Haven, 9 July, 1909 (A. I. B.) ; Woodbridge, 29 June, 

 191 1 (W. E. B.) ; on Chrysanthemum Balsamita, New Haven, 3 June, 1912 

 (W. E. B.) ; on tansy, Wallingford, 9 June, 1913 (W. E. B.). 

 M. taraxaci (Kaltenbach). Aphis taraxaci Kaltenbach. 



Mon. der Pflanz., 30, 1843. 



For description and figures see Theobald (1913a). 



Nectarosiphon Schouteden. 



Key to Species. 



1. Sensoria of antennal segment iii not confined to single row ....... 2 



Sensoria of antennal segment iii in single row .spiraecola 



2, Cornicle plainly longer than antennal segment iii, distal tip of wing 



with conspicuous smoky patch :.•••;• -rubicola 



Cornicle shorter than or subequal to antennal segment iii, distal tip 

 of wing nearly or quite clear rubi 



N. rubi (Kaltenbach). Aphis rubi Kaltenbach. 



Mon. der Pflanz., 24, 1843. 



Antenna and cornicle of this species are figured by Gillette 

 (1911b). 

 N. rubicola (Oestlund). Macrosiphum ruhicola Oestlund. 



Aphid, Minn., 60, 1887. 



Antenna and cornicle of this species are figured by Patch 

 (1914b). 

 N. spiraecola (Patch). Macrosiphum spiraecola Patch. 



Me. Agr. Expt. Sta., Bull. 233, 271, I9i4- 



This species inhabits both cultivated Spiraea and S. latifolia. 

 The color varieties range from bright green, pink and yellow to 

 soft pale tones of the same color. 



