f 
> ■ ^ s 
^- V 
•. 
\ 
■n 
6 
) 
( 
PLATE III. 
Fig. 1 to 4. — Clover-louse, Macrosiphum pisi: Fig. 1, winged viviparous female; 2, wingless 
viviparous female; 3, aphid attacked by fungus, Empusa aphidis; 4, empty skin after 
emergence of parasite — Aphidius. 
Fig. S and 6. — Clover Callipterus, C. trifolii: Fig. 5, wingless viviparous female; 6, winged 
viviparous female. 
