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



authors and requiring confirmation (see italicised names in 

 Collin, 1904) are enclosed in square brackets. Although 

 most of Walker's species are capable of being correctly 

 assigned to Kieffer's genera, as species they are insufficiently 

 defined and thus unrecognisable by students ; they are 

 therefore neglected here. 



By keeping in close touch with each other we have been 

 able to duplicate the records of very many of the most 

 interesting occurrences; in fact, the wealth of records is 

 a welcome feature. Except where a name is added all 

 records are our own ; outside the Northumberland and 

 Durham area the first-named author is almost entirely 

 responsible for the records from Lancashire and Cheshire 

 (see Bagnall, 1917-1), and the few from Cumberland and 

 Westmoreland, and from Redcar and Leeds, whilst the 

 second-named author is similarly responsible for the 

 Cleveland area, Yorkshire. We also add Mr. Burkill's 

 Yorkshire records (Burkill, 1916, 1917). 



An asterisk in the main list denotes species not shown 

 in the fists of Colfin, 1904, and Swanton, 1912. 



CONTENTS 



I. Classified List of British Cecidomyids with 



North of England Records . . pp. 348-411 



IL Check list of named species . . pp. 411-417 



III. Index to Host-plants . . . pp. 417-422 



IV. Literature; references in brief . pp. 42 2-426 



I. Classified List op British Cecidomyidae with 

 North of England Records. 



Subfamily CECIDOMYINAE. 



Group Lasiopterariae. 



Clinorrhyncha H. Loew, 1850, p. 21. 

 *1. C. chrysanthemi H. Loew, 1850, p. 39; Kieffer, 1913-2, 

 p. 19. 



Affecting achenes of Matricaria inodora and Anthemis 

 Cotula. See Houard, 5722 and 5665. 



Records from all counties excepting Westmoreland. 



