398 THE ENTOMOLOGIST. 



Siplwnophora sonchi (Kalt.) now and then occurs, mixed with the 

 colonies, especially towards the end of August ; also taken in July at 

 Crundale and Heme Bay, also sent me from Haddenham, Cambs, 

 June 27th. In the first list I recorded Siphonophora lactucce, Kalt., 

 taking Buckton's description. I have since found the true A. lachiccB 

 of Kaltenbach ; it is certainly a true aphis, with moderately long 

 cornicles. SiphonopJiora (M.) lactuca, described by Buckton, has 

 longer cornicles. 



A chrysanthemi, Koch. — Wye, on chrysanthemum, September 

 10th, 1906; also from Great Staughton, Hunts, July 25th, 1904. 

 Schouteden places this as a synonym of Linnaeus's A. cardui ; they 

 appear very distinct to me. 



A. atriplicis, Linnaeus. — This is quite a distinct species, of a pale 

 green colour, and must not be confused with the A. atriplicis of 

 Buckton, a dark, almost black insect which I fail to separate from 

 A. papaveris, Fabricius. The true {i.e. Linnaeus's) atriplicis causes the 

 leaves of various chenopodiums and also mangolds to curl upwards 

 from the middle, forming marked boat-shaped galls. I found this 

 insect quite common in the village of Wye, on the small creeping 

 goosefoot {Ghenopodium polyspermum) and on Atriplex portulacoides, 

 and also producing similar deformities on mangolds and sugar beets 

 at Wye and on the former at Heme "Bay, Seasalter, and Faversham. 

 Apterous viviparous females occurred from July 7th to September 25th, 

 when a few nymphs were found. The insects have a mealy coat, and 

 there are many oil globules in the galls. It often occurs alongside 

 with A. jMpaveris, Fabricius, A. chenopodii, Kaltenbach, and a new 

 species which I am describing. 



A. jacobcecB, Schrank. — Heme Bay, July 15th, 1911, on ragwort 

 {Senecio jacobcea) ; winged and wingless females. 



A. charophyllii, Koch ?. — Wye, July 1st, 1911, on mangold leaves. 

 A few specimens differing from other mangold aphides answered to 

 the description of this species. 



A. oxycanthcB, Koch. — On apple leaves and shoots. Wye, June 20th, 

 1911, and Mortimer, Berks, June 12th, 1911. This black aphis seems 

 uncommon on apple, but appeared in numbers in the two localities 

 mentioned this year, and caused no little harm on some Worcester 

 pearmains at Wye. It probably comes in the genus Myzus. 



A. chamomillcB, Koch?. — On chamomile plants at Wye, June 6th, 

 1911. This answers generally to Koch's species, but I am not sure 

 that it is a distinct species from A. papaveris until microscopic pre- 

 parations have been made. 



A. loti, Kaltenbach. — Wye, on Lotus corniculatus during May. 

 A small black species found singly between the leaves and stems and 

 amongst the flowers ; larvae, apterous females and one nymph. Also 

 at Ecclesbourne Glen, May 12th, 1911. 



A. avencB, Fabricius. — On barley, Wye, June 30th, 1904, wingless 

 females and nymphs, on oats and wheat. Wye, July 7th and September 

 20th, 1911, the last-named on some self-sown corn by roadside, found 

 both on the blade and in the ears. Schouteden places the A.fitchii, 

 of Sanderson, found on apples as a synonym of this species. I have 

 so far not been able to trace the connection between these two insects, 

 both of which occur here, and it is quite likely they are migrant forms. 



