Preliminarij Cafahg}ie of British Cecidomyidae. 405 



368. Cecidonn/id sp. Trail. 1878; Kieffer, 1897; 1901. 

 On Galium Aparine. Swantoii, 761 ; Houarcl, 5304. 



369. Diplosis sp. Trail, 1878; Kieffer, 1901. 



On Valeriana sambucifolia. 8wanton, 783 ; Houard, 

 5422. 

 Durham, Waldridge. 



370. Cecidomyid sp. Trail, 1878; Kieft'er, 1901. 



On Senecio Jacobaea and S. aquatica. Swanton, 842, 

 845 ; Houard, 5864, 5858. 

 Northumberland and Durham, several records. 



The following three species are shown in Houard as from 

 the British Isles, but not in Swanton. 



*371. Cecidomyid s-p. Trail, 1873; Kieffer, 1901. 

 On Rhinanthus Crisfa-galli. Houard, 5129. 



*372. Cecidomyid sp. Kieft'er, 1901. 



On Thaliclnim dunense. Houard, 2456. 

 Northumberland, Warkworth. 



*373. Cecidohiyid sp. Kieft'er, 1901. 

 On Rosa, spinosissima. Houard, 3237. 



* * * * ^ * 



The following species are new or recent records. 



*374. Cecidomyid sp. Bagnall and Harrison, 1917-3, p. 230. 



On Geum urbanwn, flowers remaining closed. 

 Durham, Norton and Fencehouses. 



*375. Cecidomyid sp. Bagnall and Harrison, 1916 (iii), 

 p. 203. 



On Betula alba. 



Durham, Waldridge and Gibside. 



*376. Cecidomyid sp. Bagnall and Harrison, 1916 (iii), 

 p. 203. 



(Seeds of TroUius europaeus. 

 Durham, BilUngham. 



