﻿APHIDID^ FOUND IN KENT. 21 



variety of Linngeus's popuU, which I have been unable to find in 

 Kent. 



C. salicivorus, Walker. — Wye, on the under side of willow leaves. 

 Very pale and sluggish, all wingless females, July 10th, 1911. 



G. caprccE, Koch. — Wye, on willows, July 10th, 1911, under the 

 leaves. Winged and wingless females. 



Genus Callipteeus, Koch. 



Callipterus qucrcus, Kaltenbach. — Wye ; abundant on oak leaves 

 in June, and on to September 22nd. Winged females and young 

 under and on the leaves, and producing much honey-dew, especially 

 abundant high up on the trees. The species and the querccus of 

 Kaltenbach are placed in Mordwilko's genus Tuberculatus. 



G. castanczcB, Buckton. — Godmersham ; beneath leaves of the 

 sweet chestnut, June 9th and 29th, 1911. Winged and wingless 

 females. Placed in the genus Myzocallis, Passerini, by Schouteden. 



G. alni, Fabricius. — Wye ; common on alders by the old river. 

 Winged females and larvae, &c., under the leaves and causing little or 

 no harm, very numerous from June to August. None seen in Sep- 

 tember. Many winged females also occured on willows, osiers, hazel, 

 and on water grasses growing under and around the alders. Schouteden 

 now places this in Pterocallis of Passerini. 



C. carpini, Koch. — Wye, July 14th, 1911, a few apterous females 

 on birch leaves, very uncommon in the neighbourhood. Schouteden 

 makes this the same as Goetze's coryli. From a casual examination 

 so far it seems distinct. 



G. querceus, Kaltenbach. — Under oak leaves, Wye, July to Sep- 

 tember. The adult winged females skip readily, whilst the apterous 

 females crawl backwards and stick tenaciously to the leaves. Not 

 abundant. Also from Pitlochry, N.B., September 7th, 1911. 



G. bctiilicolcB, Kaltenbach.''' — A single wingless female and a nymph 

 on under side of birch leaf. Wye Downs, July 30th, 1911, the latter 

 hatched on August 7th. Th;s species was also sent me from 

 Pitlochry, N.B., in September by Mr. A. Duftieid. Most on birch, but 

 a few winged females on oak. 



G. hctidarius, Kaltenbach. — A few apterous females and many 

 larvto under birch leaves. Wye, August 13th, 1911, on the downs. 



These last two should also come in Myzocallis. 



Genus Drepanidosiphum, Koch. 



Drepanidosiplmm platanoides, Schrank. — Wye Downs, July 30th, 

 1911. Many winged viviparous females on maples and sycamores, 

 beneath the leaves, a few only on each leaf, all of the green variety. 



Genus Aphioides, Passerini (Cladobius), Koch.f 

 Aphioides {Gladohms) populeus, Kaltenbach. — A single colony of 



'■'•' Kirkaldy (1905) places this in his genus Kallistaphis ; it certainly 

 differs from typical CaiUpterus, in which genus Buckton places it. 



f Kirkaldy (1905) proposed the new name Aristaphis for this genus. 

 Schouteden places it in Buckton's genus Pterocomma. 



