Preliminary Catalogue of British Cecidomyidae. 351 



Northumberland, examples taken in the buds of 

 cultivated roses at Ninebanks are possibly referable to 

 this species. 



Rhopalomyia Riibsaamen, 1892, p. 370. 



14. R. millefolii {achiUeae Inchb. 1860) H. Loew, 1850, 



p. 37 {Cecidomyia) ; Kieffer, 1913-2, p. 44. 



Galls on Achillea Millefolium and more rarely on A. 

 Pfarmica. Swanton, 815, 816, 817, 818 and 823, 824; 

 Houard, 5673, 5680, 5685, 5691. 



Northumberland and Durham, sparingly but widely 

 distributed. Lancashire, once only, near Ainsdale. 



15. R. tanaceticola Karsch, 1879, p. 27 {Oliyofrophi(s) ; 



Kieffer, 1913-2, p. 44. 



Somewhat similar galls on Tanacetum vulgare. Swanton, 

 830, 831, 832; Houard, 5750, 5752, 5754. 



Northumberland, near Chathill; Warkworth. Dur- 

 ham, several records for the Wear and Team valleys. 



Misopatha Kieffer, 1913-1, p. 48. 



*16. M. florum Kieffer, 1890-2, p. 37 {Cecidomyia); 

 Kieffer, 1913-2, p. 45. 



On Artemisia vulgaris. Houard, 5817. 

 Durham, between Lambton and Cox Green ; Greatham 

 and Port Clarence. 



17. M. foliorum H. Loew, 1850, p. 36 {Cecidomyia) ; 



Kieffer, 1913-2, p. 45. 



On Artemisia vulgaris and Abrotanum. Collin (1904, p. 

 94) places abrotani of Trail (1886, p. 250) as a synonym of 

 this species. Swanton, 834 ; Houard, 5824. 



Northumberland, Budle Bay. Durham, Billingham; 

 Birtley. 



18. M. ptarmicae Vallot {florica Winn), 1849, p. 98 



{Cecidomyia); Kieffer, 1913-2, p. 46. 



On Achillea MiUefolium and A. Pfarmica. Swanton, 813, 

 814 and 822 ; Houard, 5676, 5681 and 5706. 

 Sparingly, all counties excepting Cheshire. 



