YORKSHIRE HOMOPTERA. 
159 
W. J. FORDHAM, M.R.C.S., D.P.H., F.E.S. 
The following list of Yorkshire Homoptera is a preliminary 
enumeration of the species known up to the present to occur 
in the county. Many of the remarks made at the commence- 
ment of the list of Heteroptera recently published in The 
Naturalist apply also to this section of the order, and need 
not be repeated. The initials after the records are also 
the same. The only abbreviated references in the following 
list are (1) Edwards, Jas., ‘ Hemiptera-Homoptera of the 
British Isles/ 1896 ; (2) Buckton, G. B., ‘ Monograph of the 
British Cicada/ Vol. I., 1890 ; Vol. II., 1891. 
A total of about 380 species in the families comprised in 
this section has been recorded for the British Isles, and of 
that number 114 are herein recorded for Yorkshire, leaving a 
large number of species which are sure to be found in the 
county to be added to the list. 
Family Cercopidae. 
Tviecphova vulnevata 111. Edlington Wood and Huddersfield (1), (2) ; 
Wadworth Wood, 1902, H. V. C. 
Aphrophora alni Fall. Bubwith district and Allerthorpe Common, 
W. J. F. ; Ecclesall Wood, J. M. B. ; Riggmill, near Whitby, 
W. J. F. ; Wheatley Wood, Shirley Pool and Tween woods, 
Wadworth, H. V. C. ; Grassington, on sallow, R. B. 
Philaenus spumavius L. Bubwith, Skipwith, Escrick, Allerthorpe 
Common, etc., W. J. F. ; Kilnsea (Cordeaux) ; Doncaster, H. V. C 
Ecclesall Wood, Wharncliffe and Wentworth, J. M. B. ; Nun- 
thorpe, W. J. F. ; Keighley, R. B. ; Ingleborough (J. Dixon) ; 
Lofthouse (G. Roberts) ; Leeds (W. H. Taylor) ; Pannal and 
Harrogate (W. D. Roebuck). 
forma spumavius Edw. Doncaster district, Brockodale and Tween- 
woods, Wadworth, generally common, H. V. C. 
forma leucophthalmus L. Brockodale and Tweenwoods, H. V. C. ; 
Keighley, R. B. 
forma biguttatus F. Brockodale, Wheatley Wood and Tweenwoods 
H. V. C. ; Marley, Keighley, R. B. 
forma gibbus F. Brockodale and Kilham, H. V. C. 
forma lateralis L. Cusworth and Tweenwoods, H. V. C. ; Shadwell, 
Leeds (J . R. Kitchen) ; Keighley and district, R. B. 
forma leucocephalus Germ. Wheatley Wood and Tweenwoods 
H. V. C. ; Keighley, R. B. 
forma pvaeustus F. Shirley Pool, Askern, H. V. C. 
forma marginellus F. Tweenwoods, Wadworth, H. V. C. ; Shadwell 
(J. R. Kitchen). 
forma fasciatus F. Keighley, R. B. 
forma vittatus F. Wadworth, H. V. C. 
forma lineatus F. Kilham, Tweenwoods and Letwell, H. V. C. ; 
Shadwell (J. R. Kitchen) ; Keighley and Grassington, R. B. 
forma populi F. Tweenwoods, Wadworth, Shirley Pool and Brocko- 
dale, H. V. C. 
P. campestvis Fall. Huddersfield, S. L. Mosley (2). 
P. exclamationis Thunb. Newsholme Dean, Keighley, R B • Hudders- 
field, S. L. M., (2) ; Austwick, W. J. F. 
1922 May 1 
