236 THIfi ENTOMOLOGIST. 



leaves in my garden on June 4th, 1907, since which time it has 

 been common singly, but much scarcer in the apterous condition. 

 On August 27th, 1906, I swept the distinct C. castanece, Buck., 

 from rough heath-grass in Tuddenham Fen ; it was quite com- 

 mon there, and I brought home seven winged and nine apterous 

 females. On the under side of (usually young) leaves of Alnus 

 glutinosus near Easton Park, on August 17th last, winged Ptero- 

 callis alni, Fabr.,were not rare, though only one apterous imago 

 and but few larvae were seen.* P. tilia, Linn., I have twice cap- 

 tured flying in July in Suffolk, at Ipswich and Kessingland. 

 Here the winged form is solitarily abundant on the under side 

 leaves of Tilia platyphyllos ; comparatively few appear to be 

 ** stung," and all the apterous forms are very scarce. The only 

 P. j'uglandicola I have met with was on the leaf of a walnut-tree 

 at Sibton Abbey, Suffolk, last September. Phyllaphis fagi, Linn., 

 was in both years abundant in all its forms beneath the leaves of 

 both old and young Fagus sylvatica at the beginning of June ; in 

 late July I could find none, though I had noticed no foes of any 

 kind. 



It appears conjectural whether the Lachnides group of the 

 Aphidinae should include the two last-named genera, as ranged 

 by Buckton, since the apical antennal joint is almost identical in 

 CallijJterus, and the elongate legs of Lachnus are not represented. 

 Of this genus, the presumably rare L. agilis, Kalt., is commonly 

 beaten from Pinus sylvestris in the middle of August here, though 

 but three winged forms have been seen. Many winged L. macro- 

 cephalus, Buck., were beaten from Picea excelsa at Foxhall, near 

 Ipswich, on July 4th, 1904 ; and Kirby and Spence say (Introd. 

 7th ed. p. 185) that L. pini, Linn., used to be common in Mr. 

 Sheppard's garden (he was curate at Nacton in the same neigh- 

 bourhood, 1804-7). I have captured winged L. pinicolus, Kalt, 

 in Bentley Woods, July 26th, 1897, and Easton Broad, Suffolk, 

 June 3rd, 1905 ; at Wilverley, in the New Forest, and Parkhurst 

 Forest, Isle of Wight, in June, 1907 ; and in the middle of 

 August I have beaten the apterous form abundantly from Scotch 

 fir in my garden, where were no winged individuals. Three 

 hybernating females of L. viminalis, Fonsc, were found beneath 

 the bark of Salix alba by the Gipping at Ipswich during the 

 winter of 1894-5. Kirby says (Introd. 7th ed. p. 336) that he 

 has taken Trama troglodytes, Heyd.= Aphis radicum, in the nest 

 of Lasius flaviis — most probably at Barham. What I believe to 

 be the undescribed (by Buckton) winged female of Dryohius 



* Buckton did not describe from living specimens. When alive vpinged 

 P. alni are pale yellow, with the apex of the scutellum and two indeterminate 

 transverse abdominal bands distinctly green ; the nectaries are entirely, and 

 the tarsi apically, black ; the stigma of the wing is transparent, with its base 

 and apex clouded ; and the basal trausverse nervure of the upper wing is 

 much darker and more conspicuous than the remaining veins. 



