358 Messrs. R. S. Bagnall and J. W. H. Harrisoirs 



Northumberland, Wark worth. Durham, Peiishaw, 

 Birtley, Gibside. Cumberland, Alston. Lancashire, 

 Grange-over-Sands. 



*56. C. radicifica Rlibsaamen, 1895, p. 179 {Oligotrophy s) ; 

 Kiefter. 1913-2, p. 63. 



On Poa nemoralis. Houard, 265. 



Northumberland, Ovingham and Langley Woods 

 (H. S. Wallace). Durham, Ryhope (H. S. Wallace); 

 Penshaw and Blackhall Rocks. Cumberland, Nentliead 

 (H. S. Wallace). 



Cystiphora Kieffer, 1892, p. 212. 



*57. C. hieracii F. Loew, 1874, p. 145 {Cecidomijia); 

 Kiefter, 1913-2, p. 64. 



On Hieracium sp., apparently very rare. 

 Durham, Hylton. Lancashire, Ainsdale, and West- 

 moreland, Ravenstondale. 



*58. C. taraxaci Kiefter, 1888, p. 98; 1913-2, p. 64. 



On Taraxacum officinale, very local and rare. Houard, 

 6090. 



Northumberland, coast near Bamburgh; Warkworth. 

 Durham, Blackhall Rocks ; Penshaw, once only. Cumber- 

 land, Alston. Lancashire, Grange-over-Sands, once only. 



*59. C. leontodontis Kiefter, 1909, p. 14 (gall) ; 1913-2, p. 64. 



On Leonlodon hispidurn. Houard, 6053. 

 Northumberland, Warkworth. Durham, very local, 

 Penshaw and Washington. 



*60. C. pilosellae Kiefter, 1892, p. 213; 1913-2, p. 64. 



On Hieracium PiloseUa. Houard, 6207. 



Very local ; records from all counties excepting Cheshire. 



61. C. sonchi F. Loew, 1875, p. 18 (Cecidomyia) ; Kiefter, 

 1913-2, p. 64. 



On Som-hus arvensis. Swanton, 880; Houard, 6100. 



Northumberland, abundant in N.E. Northumberland ; 

 Ovingham. Lancashire, Ainsdale, one plant only. Also 

 Stirlingshire, very common. 



