Preliminary Catalogue of British Cecidomyidae. 367 



*113. P. compositarum Kieffer. 1888-2. p. 310 {Cecidomyia); 

 1913-2, p. 75. 



Heads of Cirsium lanceolatum. Houard, 5911. 



Northumberland and Durham, numerous records. 

 Lancashire, Lathom. Yorkshire, Marton ; Bardseynear 

 Leeds. 



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



Heads of Cirsium lanceolatum, heads remaining closed 

 or not opening fully; often bent or twisted; florets 

 apparently normal ; larvae white to yellowish. 



Records from Northumberland, Durham, Cumberland, 

 Yorkshire and Lancashire. 



*115. P. corylina KiefEer for coryli Riibsaamen, 1912, 

 p. 288; Kieffer, 1913-2, p. 75. 



In catkins of Corylus. 



Lancashire, Grange-over-Sands, October. Yorkshire, 

 Guisbrough, October. 



116. P. crataegi Winnertz, 1853, p. 228 {Cecidomyia); 

 Kjeffer, 1913-2, p. 75. 



On Crataegus monogyna. Swanton, 540 ; Houard, 2942. 

 Common everywhere ; records from all counties. 



*117. P. daphnes Kieffer, 1901-2, p. 18; 1913-2, p. 75. 



On Daphne Laureola. Houard, 4312. 

 Yorkshire, Gunnergate. 



*118. P. engstfeldi Eiibsaamen, 1889, p. 375 {Cecidomyia); 

 Kieffer, 1913-2, p. 75. 



On Sjiiraea Ulmaria Houard, 2832 and 2837. 

 Local but widely distributed ; records from all counties. 

 Also from Scotland. 



*119. Perrisia sp. Bagnall and Harrison, 1916 (iii), p. 200. 



On Spiraea Ulmaria, on the underside of leaf, like P. 

 engstfeldi, but always adjacent to midrib or nerve, which 

 is considerably swollen in such manner as to become a 

 shelter to the larva. 



Extremely local, but plentiful where it occurs. Durham, 

 Gibside and near Lamesley; Bilhngham. Cumberland, 

 Alston. 



