88 THE SCOTTISH NATURALIST 



Subfamily Chaitophoriisue. 

 Genus Phyl/aphis, Koch. 



Phyllaphis fagi, Linn. Alatae, apterre, nymphse, and larva: 

 were common on a beech hedge at Dingwall on 6th October. 



Subfamily Lachnin,e. 



Of the Lachriinse I collected several species in the north 

 of Scotland, but I have not yet identified them. I hope to record 

 them later. 



Subfamily Schizoneurin/E. 



Genus Eriosoma, Samouelle. 



Eriosoma lanigera, Haussman. On ist August I found an 

 apple-tree in Balconie garden almost killed by this pest. Apterous 

 viviparous females and larvse were swarming on the branches, which 

 they had covered with a sticky mass of white cottony wool. Alate 

 and apterous viviparous females occurred on an elm-tree close to 

 this garden at the same time, and I found them also on elm leaves 

 at Swordale on 28th July. A larva of Syrphus vitripeiinis, Meigen, 

 was feeding upon those on elm, and the fly emerged in the beginning 

 of September. 



Subfamily Pemphigin^e. 



Genus Pemphigus, Hartig. 



Pemphigus bursarius, Linn. (Jactacarius, Passerini). Apterous 

 viviparous females and larvae of this species were abundant on 

 lettuce roots in a garden at Dingwall on 6th October. I also 

 found nymphse and alatae in the soil, but they were less common. 



Pemphigus glebce, no v. sp. 



Virgogenia. Pale green or pale ochreous green covered with 

 fine close farinose matter, and with eighteen long tufts of white 

 waxy substance on the posterior part of the abdomen; legs 

 and antenna:' greyish ochreous covered with white tomentum, 

 in some specimens appearing pale grey ; anal plate pale brownish 

 grey. There is a pale brown dorsal patch on the head. The 

 proboscis is pale ochreous, the base and tip pale greyish brown. 

 The body is elongate oval in shape. The antenna? reach to the 

 coxas of the second pair of legs, and consist of five segments. The 

 first segment has one or two short hairs ; the second segment 

 is slightly longer than the first, and has three short hairs towards 



