Preliminary Catalogue of British Cecidomyidae. 391 



265. S. petioli KiefEer, 1898-2, p. 37 {Harmandia) ; 1913-2, 

 p. 178. 



On Populu's tremula. H. petioli, Swanton, 173, 174; 

 Houard, 493, 497. 



Contarinia Rondani, 1860, p. 287. 

 *266. C. acetosae Kieiter, 1901-2, p. 31 ; 1913-2, p. 179. 



In flowers of Rumex Acetosa and Acetosella. Houard, 

 2128, 2136. 



NoETHUMBERLAND, Warkworth. Durham, Greenside 

 and near Lanchester; Beamish. Cheshire, Bidston Hill. 



*267. C. anthobia F. Loew, 1877, p. 16; Kieffer, 1913-2, 

 p. 179. 



In flowers of Crataegus Oxyacantha. Houard, 2941. 

 Northumberland and Durham, several records. York- 

 .SHiRE, Gunnergate. 



*268. C. barbichei Kieffer, 1890-1, p. 29; 1913-2, p. 179. 



(«) On Lotus corniculatus. Houard, 3617. 

 Not rare; records from all counties. 



(6) On Lotus major. Houard, 3627. 

 Durham, Gibside and Tinkler Fell. 



*269. C. betulicola • KiefEer, 1889-1, pp. 155 and 171; 

 1913-2, p. 179. 



On Betula alba. Houard*, 1069. 



Northumberland and Durham, several records. Lan- 

 cashire, Freshfield, Grange-over-Sands. Cheshire, Bid- 

 ston Hill. Yorkshire, Eston. 



270. C. betulina KiefEer, 1889-1, p. 153; 1913-2, p. 179. 



On Betula alba. Swanton, 192; Houard, 1076. 



Northumberland and Durham, several records. Lan- 

 cashire, sandhills near Freshfield, plentiful. Yorkshire, 

 Eston; Leeds. ' 



271. C. campanulae KiefEer, 1895-3, p. 9; 1913-2, p. 180. 



On Ca»ipa)iula rotundifolia. Swanton, 795; Houard, 

 5511. 

 Northumberland, Warkworth. 



