Preliminary Catalogue of British Cecidomyidae. 355 



Durham, Waldridge, Hart and Easingtou; rare. 

 Lancashire, Ainsdale. Yorkshire, Redcar ; Leeds district. 



Janetiella KiefEer, 1898-2, p. 23. 



37. J. lemeei KiefEer, 1904, p. 71 {Oligotrophy s) ; 1913-2, 

 p. 59. 



Gall on midrib and nerves of Ulnuis montana. Swanton, 

 300; Houard, 2061. A very local species. 



Northumberland, Stocksfield and Ovingham (H. S. 

 Wallace) ; Wark worth. Durham, Winlaton Mill ; dene 

 near Fencehouses ; Urpeth. Lancashire, Grange-over- 

 Sands. Yorkshire, Bardsey, near Leeds. 



Specimens were taken at Warkworth on U. campestris 

 and U. suherosa also. 



*38. J. thymi KiefEer, 1888, p. 100 {Cecidomyia) \ 1913-2, 

 p. 59. 



On Thymus. Houard, 4912 and 4917. 

 Records from all counties excepting Cheshire and York- 

 shire. 



*39. J. thymicola IviefEer, 1888, p. 102 {Cecidomyia); 

 1913-2, p. 59. 



Also on Thymus, gall like preceding, but pilose. Houard, 

 4921. 



Northumberland, Seahouses, Warkworth, Crag Lough. 

 Durham, near Sunderland, rare. Lancashire and West- 

 moreland, Grange-over-Sands district. Also from Scot- 

 land. 



*40. J. tuberculi Riibsaamen, 1889, p. 61. f 



Galhng stem of broom {Sarothamnus). Houard, 3424. 



Northumberland and Durham, Derwent banks be- 

 tween Espershields and Edmundbyers; and Durham, in 

 a lane between Newbiggin and Rowley, not common. 



*41. Janetiella sp. Bagnall and Harrison, 1917-2, p. 207. 



On Thymus. 



Durham, Stanhope and Penshaw Hill. 



t We have not yet traced this in Kieffer, 1913-2, unless it is 

 the Perrisia tuberculi Riibs. 



