18 THE ENTOMOLOGIST. 



Genus Myzus, Passerini. 



Myzus cerasi, Fabricius. — Widely distributed over tbe county. 

 Sometimes does considerable harm to cherries. 



M. jjersicce, Sulzer. — Wye, 1901 and 1907, on peaches and 

 nectarines, not seen since. 



M. ribis, Linnaeus. — Common all over the county on red currants 

 and on gooseberries. Often very harmful. 



Genus Ehopalosiphum, Koch. 



Bliopalosiphum ribis, Linn. — Common on red and black currants, 

 but mostly on the former in all parts of the county, June and July. 

 I do not think that the red blisters on the leaves are caused by this 

 aphis at all. 



B. lactuccB, Kaltenbach. — Paddock Wood, Wye, Sellinge, Lin- 

 ton, Swanley, Sevenoaks, Dover, Ash. This species occurs on 

 sow-thistle and lettuce, and appears to be the same as the former 

 species. 



B. nymi^hcBce, Linnaeus. — I saw this on some yellow water-lilies 

 on the military canal near Hythe in 1899, but have failed to find 

 it since. 



B. ligustri Kaltenbach. — Wye, August, 1901 and 1905, and Chil- 

 ham, 1904, on privet in small numbers. 



B. dianthi, Schrank ? — I am not sure of the species, but it is 

 apparently the common turnip aphis, and has occurred all over 

 the county. 



Genus Melanoxanthus, Buckton. 



Melanoxanthns salicis, Linnaeus. — This large and beautiful aphis 

 I have found in abundance at Wye in osier-beds, where it does con- 

 siderable damage some years, often occurring in enormous colonies. 



Genus Siphocoryne, Passerini. 

 Sipliocoryne caprea, Fabricius. — Wye, June and July, 1901 to 

 1907, abundant on various Salix, most so on the goat willow ; Chil- 

 ham, 1900 ; Woodchurch, 1899. 



Genus Aphis, Linnaeus. 



Ajjhis hrassiccB, Linngeus. — Scattered all over the county, appear- 

 ing mostly in late July and August, and often doing much harm. 



A. cratcBgi, Kaltenbach. — Wye, Chilham, Whitstable, Canterbury, 

 Linton, Dartford, Tonbridge, Sellinge, often abundant on the haw- 

 thorn hedges. 



A. carotcB, Koch. — Wye, Paddock Wood, Canterbury, Horsmon- 

 den. On the roots and leaves of carrots. Walker's A. subterranca 

 is evidently the same. 



A. grossularicB, Kaltenbach. — Maidstone, Wye, Sellinge, Faver- 

 sham, Swanley, Orpington, Canterbury. Common on gooseberries 

 and red currants, doing much harm. 



A. viali, Fabricius.— A common pest in all Kent orchards. 



A. fitchii, Sanderson. — Wye, Orpington, Swanley, Linton, Dart- 

 ford, Newington, Sellinge, Hythe, &c. Common on apple; probably 

 occurs everywhere. 



