NEW BRITISH CECIDOMYIID.E, 3. 65 



hole (? capped) for exit of larva at end of either upper or lower surface 

 of leaf. 



Northumberland, Ovingham, July, 1918 ; Bamburgh, Sep- 

 tember, 1918. 



Cecidonii/idartiiii sp. 



Svcamore. Spot yellowish, without depression or excavation, 

 HouaVd, 3988. 



Durham, Gibside. 



Cecidoiiii/idaiuiii sp. 



On Galeopsis tetrahit. Swelling about 3 mm. in length, one side of 

 the stem containing a bone-white larva. Swelling discoloured, 

 yellowish with dark margins. 



Durham, Beamish, July 20th, 1918. 



Northumberland, near Ryton on Tyue. 



CecidoDii/idanini sp. 



On Cytisus scopariits. Terminal interuodes shortened and leaves 

 bunched. 



Durham, Hamsterley, Gibside. 



Cecidomyidariini sp. 



On Saxifrage aizoides. Flower closed and deformed, larvae pale 

 flesh colour. 



Durham, Upper Teesdale, August, 1921. 



Cecidomyidarnm sp. 



On Deschainpsia flexuosa. Thickened swelling at base of leaf. 

 Northumberland, Corbridge, June, 1918. 



Cecidomyidaram sp. 



On ChrysantJtenntin sp. and Matricaria sp. Minute parenchy- 

 matous galls as described from Senecio spp. 

 Apparently widely distributed in gardens. 



Cecidoiiiyidarnni sp. 



On Senecio erncifolius. Flower slightly swollen near base ; like 

 Stictodiplosis hypochaeridis but with larvae, which are gregarious, of a 

 fleshy reddish pink and apparently non-leaping. 



Northumberland, Seaton Sluice. Durham, Ryhope, July. 



Cecidoiiiyidar 11)11 sp. 



On Senecio eriicifoliiia. Small pustule on upper surface sheltering 

 a minute white broad and flat larva in depression below. 

 Durham, Ryhope sea banks, July, 1920. 



Cecidoiiiyidarit))! sp. 



On Senecio spp. Minute, pale or discoloured parenchymatous galls 

 irregular in shape, each containing a minute white larva. Often 

 numerous examples on a single leaflet. 



Northumberland and Durham, apparently common. 



