Preliminary Catalogue of British Cecidomyidae. 395 



294. C. tiliarum Kieffer, 1890-2, p. 193; 1913-2, p. 182. 



On Tilia plafyphyllos and T. vulgaris. Swanton, 615-17, 

 619; Houard, 4122-23-25-54. 



Records from all counties excepting Westmoreland and 

 Cheshire. 



*295. C. tragopogonis Kieffer, 1909, p. 30; 1913-2, p. 182. 



On Tragopogon pratensis . = ContariniasTp., Houard, 6077. 



Durham, Wear Valley, from Chester-le-Street to Hylton ; 

 Ryhope. Lancashire, Birkdale. Cheshire, Bidston. 

 Yorkshire, Redcar. 



296. C. traili Kieffer, 1889-2, p. 262; 1913-2, p. 182. 



Flowers of Pimpinella Saxifraga. Swanton, 658 ; Houard, 

 4446. 



Durham, near Penshaw, galls only, rare. 



297. 6*. tremulae Kieffer, 1909, p. 78; 1913-2, p. 182. 



On Populus tremula. ^^ Contarinia sp., Swanton, 172; 

 Houard, 502. 



298. C. tritici, Kirby, 1797, p. 246 (Cecidomyia) ; Kieffer, 



1913-2, p. i82. 



*299. C. Valerianae RUbsaamen, 1890, p. 231 ; Kieffer, 

 1913-2, p. 182. 



Valeriana sambucifolia. Houard, 5421. 

 Durham, Gibside. 



*300. C. viburnorum Kieffer (nom. no v. for C. vibnrni 

 Kieff. non Felt), 1912-1, p. 230; 1913-2, p. 182. 



In flowers of Viburnum Opulus. 



Northumberland, Ovingham. Durham, many records. 

 Cumberland, Keswick. 



*301. Contarinia sp. Riibsaamen; Lagerheim. 



On Galium verum. Houard, 5288. 

 Durham, Penshaw Hill. Northumberland, Bamburgh, 

 Warkworth. Also from Scotland. 



*302. Contarinia sp. Bagnall and Harrison, 1917-3, p. 229. 



On BupJeuruni tenuissimum. 

 Durham, Greatham. 



