THE DEATH-WATCH : NOTES AND OBSERVATIONS. 153 



PJiyllocoptes anthobius, Nal. Lavant Down, near Chichester, 

 West Sussex ; August, 1917. New host plant. First British 

 record by Bagnall and Harrison, in June, 1917, on G. saxatile. 



Aspenda cynanchica, L. 



Phyllocoptes minutus, Nal. Lavant Down, near Chichester, 

 West Sussex ; August, 1917. 



B ideas cerniia, L. 



Aphis, Houard, No. 5647 (without specific name). Near 

 Chichester, West Sussex ; August, 1917. 



Chenopodhim vidgare, L. 



Eriophyes, Houard, No. 1890. Bury, West Sussex ; June, 1917. 



Chenopodium hyhridum, L. 

 Aphis atriplicis, L. Near Enfield, Middlesex ; x\ugust, 1917. 

 New host plant. Common on other species of Chenopodiuyn. 



Betida puhescens, Ehrh. 



Gontarinia hetulina, Kieff. Near Arundel, West Sussex, etc., 

 June, 1917. Common on B. cdha (= verrucosa), but 

 apparently hitherto overlooked on B. puhescens. 



Quercus ilex, L. 

 Eriophyes ilicis. Can. Near Chichester, West Sussex ; August, 

 1917. 



Salix purpurea, L., var. icoolgariana (Borr.). 



Rhahdophaga terminalis, H. Loew (= Perrisia terminalis). 

 Newhaw, Surrey ; 1917. This has been recorded on various 

 willows. 



Salix cinerea, L. 

 Iteomyia major, Kieff. Selsey, West Sussex ; August, 1917. 

 New host plant. Eecently recorded by Bagnall and Harrison 

 on S. aurita only. 



Salix myrsLuiteit, L., x nigricans, Sm. 



Pontania salicis, Christ. New host plant. Found on speci- 

 mens of this hybrid willow received from Mr. James Groves. 

 Gathered by him in Mid Perthshire August, 1891. 



THE DEATH-WATCH: NOTES AND OBSEEVATIONS. 

 By C. J. Gahan, M.A., D.Sc. 



(Conchided from p. 125.) 



In the writings of those older authors there is nothing to 

 suggest how far they were acquainted with the life history of 

 the death-watch beetle, or whether indeed they knew anything 



