86 THE SCOTTISH NATURALIST 



Swordale. Larvae, nymphse, apterous and alatc viviparous females 

 were present, together with Cecidomyid larvae. 



Siphocoryne xylostei, Schrank. This species occurred abundantly 

 on honeysuckle {Lonicera sp.) growing on a cottage wall near 

 Swordale on 2nd August. The honeysuckle had flowered 

 luxuriantly here for several years, but this summer its flowering was 

 prevented by this aphis, which was thickly clustered on all the 

 young shoots. Lame, nymphae, apterous and alate viviparous 

 females occurred, and Cecidomyid larvae were preying upon them. 

 I noticed no specimens of this aphis on the honeysuckle in our 

 own garden, which is two miles from this cottage. 



Genus Hyalopterus, Koch. 



Hyalopterus flavus, Kittel ( = aquiiegice, Koch, and trilwdus, 

 Walker). An alate female of this species was found on the under- 

 side of a rose leaf in a garden at Dingwall on 6th October. 



Hyalopterus pruni, Fabricius. I found this species clustered 

 thickly on the under-surface of some of the leaves of a plum-tree 

 growing against a wall in the garden at Swordale on 29th July. 

 They consisted principally of apterous viviparous females and 

 nymphae and, in lesser numbers, alatae. This species was much 

 parasitised by a Chalcid, and was also preyed upon by Cecidomyid 

 larvae. (It has also been recorded from Carronvale, Larbert, 

 Stirlingshire, by Mr Theobald in 1908.) 



Genus Aphis, Linnaeus. 



Aphis idceus, Vandergoot. I took this species on wild 

 raspberry near Swordale on 7th July. Apterous females and 

 nymphae, and less commonly alatae, were swarming on the top 

 shoots, in the curled leaves, and on the young stem. 



Aphis kochii, Schouteden. I found a few apterous viviparous 

 females of this species on apple leaves at Swordale on 30th July. 

 Cecidomyid larvae had been at work in reducing the colony. 



Aphis hederce, Kaltenbach. This species was common on ivy 

 at Swordale in the end of July. 



Aphis clicerophylli, Koch. I found this species, apterous 

 viviparous females and two alatae, thickly clustered on an 

 umbelliferous plant (Chcerophyltum sp. ?), near Evanton, on 3rd 

 August. 



Aphis padi, Linnaeus. Alate viviparous females of this species 

 and immature ovigerous females were abundant on the under- 



