84 



THE SCOTTISH NATURALIST 



of the length of the cornicle; the remaining apical portion is 

 reticulate. The cauda is elongated, about three-quarters the 

 length of the cornicle, with six long hairs on one side and four 

 on the other. The legs are ochreous, with the apices of the 

 femora and of the tibia and the entire length of the tarsus dark 

 brown. The proboscis does not reach the base of the 2nd coxre. 

 Length, 2-2.3 mm. 



Foodplant. Leek {Allium porruiii). 

 Locality. Swordale, Evanton, Ross-shire. 



Fig. I. 

 Macrosiphum allii, nov. sp. Parts of A late Viviparous Female. 



A. Head and antenna. 



B. Cornicle. 



C. Distal portion of cornicle enlarged. 



D. Cauda (on same scale as A and B). 



E. Hair of antenna enlarged. 



F. Third joint of antenna. 



G. Cauda enlarged. 



H and I. Different views of rhinarium. 



Notes. I found several alate viviparous females of this species 

 on the blades of leeks in our garden at Swordale on 5th August 



