Explanation of Plates. 



Plate I. 



(I) 



Macrosiphum tieoartemisiae n. sp. 



(Wingless viviparous female) 



Fig. 1. Head. Fig. 2. Antenna. 



3. Hind tarsus. 4. Cauda. 



5. Cornicle. 



Macrosiphoniella formosartemisiae n. sj). 



(Wingless viviparous female) 



Fig. 6. Head. Fig. 7. Cornicle. 



8. Cauda. 9. Antenna. 



(2) 



Macrosiphum alopeculi u. sp. 



(Wingless viviparous female) 



Fig. 1. Head. Fig. 2. 3rd antennal joint. 



3. Cornicle. 4. Cauda. 



5. Cauda. 



Macrosiphum- miscanthi u. sp. 



(Wingless viviparous female) 



Fig. G. Head. Fig. 7. Cornicle. 



8. Cauda. 



Macrosiphum granarium (L.) (American specimen) 



(Wingless viviparous female). 



Fig. 9. Cauda. Fig. 10. Coruicle. 



Aphis somei Essig et Kuw. 



(Winged viviparous female.) 



Fig. 11. Head. Fig. 12. Antenna :(ioints 3-5) 



13. Antenna (joint 6) 14. Cauda. 



15. Hind tarsus. 16. Cornicle. 



(Wingless viviparous female). 



Fig. 17. Cornicle. Fig. 18. Cauda. 



