500 
Deltocephalus pulicarius. Fall. Stratton Strawless, Dunston, 
Cossey, Eaton ; common in clamp places. 
Arytcena uligis. Curt. Hellesdon, Eaton ; on furze. 
Psylla forsteri. Elor. Very abundant on alder. 
„ alni. Lin. Stoke, Eaton, Cossey ; not uncommon on 
alder. 
,, spartiophila. Eorst. Hellesdon ; on broom. 
„ buxi. Lin. On almost every box-tree. 
„ salicicola. Eorst. Horsford, Iieigham; on willow 
not common. 
,, pineti. Elor. On fir ; Ringland, Sprowston. 
„ costalis. Elor. Bramerton, Armingball, Stoke ; on 
blackthorn, elm, and whitethorn. 
„ craTjEGIcola. Forst. Common on whitethorn. 
,, mali. Forst. Stratton Strawless ; common on crab- 
apple. 
„ fraxinicola. Forst. On osier, ash, oak, crab-apple, 
and whitethorn ; Stratton Strawless, Stoke, 
Heigham, Swanton Morley. Apparently common 
everywhere. 
,, fraxini. Lin. * On young ash trees, common. 
,, ferruginea. Forst. Eaton; on blackthorn — rare. 
„ costatopunctata. Forst. Bare — on blackthorn at 
Bramerton. 
„ visci. Curt. This species, which was described by 
Curtis from specimens bred from mistletoe from 
Rougham, near Bury, I have taken on mistletoe 
at East Carlton. It does not seem to have been 
found elsewhere in this country. 
Trioza urticve. Linn. On willow, Porlancl; by fir-beating at 
Eingland ; and on nettles everywhere. 
„ haematodes. Forst. Felthorpe, Eingland. 
„ albiventris. Forst. Eingland, Stoke. 
,, rhamni. Sclirank. Eingland ; by beating fir trees. 
Liyia j uncorum. Latr. By Filby Broad, Ac., common : Pagets’ 
‘ Yarmouth.’ Felthorpe Common ; Cossey. 
