tSE CANADIAN ENT0M0L0OI8T. 41 7 



22. Cliaitophoius, Koch, 1854, Pfldnzenlause, p. i, t. populi (L.), Gerst. 

 = ||ChKtophoriis of many lists. 



= ||TPhyUophorus, Tliornton, 1852, 'I'r. Micr. Soc, Lond., p.?, t. 

 testudinarius. 



= f Phyllophora, Fernie, 1852, Morris Nat., II, 265, testudinacea. 



= ||tChelymorpha, Lane Clark, 1858, The Microscope, p. ?, t. phyllo- 

 phora, Clark \^ = aceris (L.)]. 



= tPeriphyllus, Van der Hceven, 1863, Tijdschr. Ent., VI, 7, t testudo, 



Hceven \ = aceris (L.)]. 

 = fArctaphis, Walker, 1870, Zoologist, 2000 (? inedit). 

 = Rhyllophorus (!) Scudder, 1882, Nomencl. Zool., I, 246. 



Subfam. 2. — Callipteri7ice. 



23. Bradyaphis, Mordviiko (f). 



24. Sipha, Passerini, i860, Gli Afidi, 29, t. ^/y^^r/^ (Kaltenbach), Pass. 



25. CalJipterus, Koch, 1855, Pflanzenlause, 208, t. y//^/rt;;^//.f (Kalt.), P^^ss., 



i860. 

 = Pterocallis, Passeiini, i860, Gli Afidi, 28, t. ^////, Pass., =maculafa, 



Heyden. 

 = ||Ptychodes, E'uckton, 1881, Mon. Aph., Ill, 39, \. juglandis (Kalt.), 



Biickt. 

 = Panaphis, Kirkaldy, 1904, Entom. XXXVII, 279. 



26. Kallistajjhis, n. n., t. betulicolce (Kalt.).* 



= ||Gallipterus, Buckton, 1881, Mon. Aph. Ill, 12 (not containing 

 Koch's type). 



27. Myzocallis, Passerini, i860, Gli Afidi, 28, t. ^i?;^// (Goetze), Pass. 



= Mysocallis Rondani, 1874, Bull. Ital. VI., 62 (g). 



28. Phyllaphis, Koch, 1856, Pfl inzenlause 248, \.fagi(\.), Koch. 



= Phillaphis of some lists. 



29. Symydobius, Mordviiko (h). 



(f) I cannot trace this. Khoiodovsky (1898) in a Forestry paper issued 

 (separately? or perhaps in the Isviestiya S. Peterb. Liesn. Instit. ?), under the 

 title " Obyasnityelny Katalojf Kollyektsy tlyei (Aphida;)," described it in an 

 analytical table, but without mention of species (p. 6). It is omitted in the later 

 1902 paper. 



(g-) Kholodkovsky considers 25, 26 and 27 to be only one valid genus. 



(h) Included by Kholodkovsky & Schouteden in their paper, but without 

 reference — I cannot trace it. 

 December, 1905. 



