PRELIMINARY LIST OF APHiniDvTl FOUND IN KENT. 17 



S. granaria, Kirby. — Found all over the corn districts and else- 

 where. I have never known any serious damage caused by it to corn 

 in this county. Found on meadow foxtail grass at Wye. The green 

 apple aphis [Aphis fitcUii) placed in a cage with corn and grasses 

 became winged and went to the latter. The progeny seemed to me 

 the same as S. granaria. It is probable that these are merely 

 dimorphic forms. 



*S'. chelidonii, Kaltenbach. — Wye, July, 1901, 1904, on raspberry 

 and on celandine in May in 1904 ; Crundale, on celandine, in May, 

 1909. 



S. fragarice, Koch.— Wye, July, 1905, 1906; Swanley, 1902; 

 Sevenoaks. On wild and cultivated strawberries. 



S. millefolii, Fabricius. — Wye, August and September, 1910 ; 

 thickly coating the stems of the common yarrow (Achillea niilli- 

 folium). 



S. circumflexa, Buckton. — ^Wye, December to May, under glass ; 

 Swanley, June ; Sellinge, July ; Canterbury, May. On geraniums, 

 arums, and other plants in greenhouses. 



*S'. diroda, Walker. — Wye, June, July, August, on roses and on 

 wheat and barley ; Tonbridge ; Ash ; Canterbury. I feel sure there 

 is a migration between the rose and Graminacecs of this species. 

 Generally common on roses. 



S. pisi, Kaltenbach. — ^Wye, abundant always, very harmful in 

 some seasons, notably 1908, to field and garden peas ; Dover, 1904 ; 

 Appledore, 1901 ; Tenterden, 1899. 



S. pelargonii, Kaltenbach. — Wye, Sellinge, Ashford, Linton, on 

 geraniums and calceolarias in the open and under glass. 



*S'. lactiLCOs, Kaltenbach. — I have seen this in most gardens I have 

 visited in the county, and think the same species occurs on red 

 currants. 



*S'. ruhi, Kaltenbach. — Wye, Dartford, Tollbridge, Sellinge, West- 

 well, on the raspberry and also on bramble in May and June; it 

 occurs on tlie raspberries later. Curls the leaves of the latter, but 

 never does much harm. 



*S'. urticcB, Kaltenbach. — Wye, Westwell, Ashford, Whitstable, 

 Tunbridge Wells. Often very common on nettle. 



S. carnosa, Buckton. — Wye, 1900, on stinging-nettles. 



*S'. avellancB, Schr. — Common all over the county where nuts are 

 cultivated, and may be found on wild hazels. It often swarms on 

 cobs and filberts, but seems to do little harm. 



*S'. rosaruvi, Walker. — Common on wild and cultivated roses. I 

 have found it in most localities where looked for. 



>S'. sonchil, Linnaeus. — Wye, Hastingleigh, on Sonchus and Cen- 

 taurea nigra in 1902 ; heads of the latter smothered by it. 



S. fragariella, Theobald. — Swanley, 1905, on strawberries under 

 glass. 



Genus Phorodon, Passerini. 



Phorodon hnmnli, Schrank. — The common hop aphis, found in all 

 hop-gardens in Kent, and also on sloe, damson, bullace, and plums. 

 Migrates between the hops and prunes. Frequently causes endless 

 loss to hop-growers and much expense in w^ashing every year. 



ENTOM. — JANUARY, 1911. C 



