THE ENTOMOLOGIST. 



Vol. L.] august, 1917. [No. 651 



NEW AND EAEE HOMOPTERA IN THE NORTHERN 



COUNTIES. 



By J. W. H. Harrison, D.Sc. 



The following notes include captures made during the past 

 two or three years, some of which have been put on record 

 casually in our local natural history magazines, whilst others 

 have never been referred to.- The latter, in many cases, are im- 

 portant either as extending the known range of our British 

 forms or for other reasons, and therefore deserve recording 

 without further delay. 



PsyllidcB. 



Livia jimcorum, Latr. Thinly distributed throughout North- 

 umberland, Durham, and the Cleveland district of Yorkshire ; 

 also in East Cumberland. 



Livia crefeldensis, Mink. Newham Bog, Northumberland, 

 very plentiful, feeding on sedges. Rare in the Middlesbrough 

 area of North Yorks. 



Rhinocola aceris, L. Rare Birtley, North Durham ; also 

 rare Gunnergate, Cleveland. New to my Yorkshire list. 



Rhinocola ericce, Curt. Plentiful everywhere in Durham, 

 Northumberland, and Cleveland. 



Aphalara nervosa, Forst. Very common on the Wear banks, 

 Wolsingham, Durham. Does not occur elsewhere, as far as I 

 have examined. 



Psijlla viburni, F. Low. Very rare indeed. Birtley, Durham, 

 only. 



Psylla hippophaes, Forst. Extremely plentiful near North 

 Sunderland, in Northumberland. 



Psylla brunneipeiinis, Edwards. Sparingly in Durham ; 

 commoner at Wolsingham. 



Trioza galii, Forst. Everywhere, but not common. 



Trioza velutina, Forst. Rare Birtley and Gibside (R.S.B.), 

 Durham. 



Trioza atriplicis, Licht. An addition to the British list, 

 found in Greatham Saltmarsh, in Durham, at the Teesmoutl, 



KNTUM. AUGUST, 1917. P 



