Preliminary Catalogue of British Cecidomyidae. 355 



Durham, Waldridge, Hart and Easington; rare. 

 Lancashire, Ainsdale. Yorkshire, Redcar ; Leeds district. 



Janetiella KiefEer, 1898-2, p. 23. 



37. J. lemeei Kieffer, 1904, p. 71 {Oligotroj^hvs) ; 1913-2, 

 p. 59. 



Gall on midrib and nerves of Ulmus monfana. 8wanton, 

 300; Hoiiard, 2061. A very local species. 



Northumberland, Stocksfield and Ovingham (H. S. 

 Wallace) ; Warkworth. Durham, Winlaton Mill ; dene 

 near Fencehouses; Urpeth. Lancashire, Grange-over- 

 Sands. Yorkshire, Bardsey, near Leeds. 



Specimens were taken at Warkworth on U. camqjestris 

 and U. suherosa also. 



*38.. J. thymi Kieffer, 1888, p. 100 [Cecidomijia); 1913-2, 

 p. 59. 



'On Thymus. Houard, 4912 and 4917. 

 Records from all counties excepting Cheshire and York- 

 shire. 



*39. J. thymicola Ivieffer, 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 Rubsaamen, 1889, p. Gl.f 



Galling stem of broom (Sarothaumus). Houard, 3424. 



Northumberland and Durham, Derwent banks be- 

 tween Espershields and Edmundbyers; and Durham, in 

 a lane between Newbiggin and Rowley, not conmion. 



*4]. 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 

 tlie Perrisia tuberculi Riibs. 



