366 Messrs. R. S. Bagnall and J. W. H. Harrison's 



*105. P. bryoniae Bouche, 1847, p. 144 (Cecidomyia) ; 

 Kiefter, 1913-2, p. 74. 



On Bryonia dioica. Houard, 5476. 

 Durham, near Lamesley. 



*1()6. P. campanulae Rubsaamen. 



On Campamda media and C. jpersicaefolia. 

 Durham, Birtley. Cumberland, Alston. 



107. P. capitigena Bremi {Evphorbiae partim H. Loew), 



1847, p. 50 {Cecidomyia) ; Kieffer, 1913-2, p. 74. 



On Euphorbia Esula. Swanton, 597. 



108. P. cardamines Winnertz, 1853, p. 225 {Cecidomyia) ; 



Kieffer, 1913-2, p. 74. 



On Cardamine spp. Swanton, 390 and 393 ; Houard, 

 2672 and 2665. 

 Durham, in the Derwent Valley. 



109. P. cerastii Binnie, 1877, p. 181 {Cecidomyia) ; Kiefter, 



1913-2, p. 75. 



On Cerastium vidgatum. Swanton, 348 ; Houard, 2338. 

 Northumberland, Warkworth, on *C. semidecandrum 

 and C. vidgatum. Durham, Ryhope Dene. 



*110. P. cirsii Rubsaamen, 1890, p. 236 {Cecidomyia); 

 Kieffer, 1913-2, p. 75. 



In heads of Cirsium. arvense. Houard, 5927. 

 Not uncommon ; records from all counties. 



*111. Perrisia sp. Bagnall and Harrison, 1916 (iii), p. 199. 



In heads of Cirsium arvense, like P. cirsii, but larvae 

 yellowish to orange instead of red ( ? form or stage of 

 P. cirsii). 



Not uncommon; records from all counties excepting 

 Cheshire. 



*112. Perrisia sp. Bagnall and Harrison, 1916 (iii), p. 199. 



Heads of Cirsium arvense closed ; a few petals to one 

 side only breaking out ; larva soUtary, deep vermilion to 

 crimson. 



Northumberland, Ninebanks. Durham, Penshaw, 

 Fatfield, and Gibside. 



