PLATE LXXXVI. 



Syrphus balteatus. (Page 120.) 



Fig. 1. — Imago. 



Fig. 2. — Larva attached to a leaf by its posterior 

 rings. 



DiODONTus TRiSTis. (Page 166.) 

 Fig. 3. — Imago of the same. 



DioDONTUs MiNUTUS. (Page 166.) 



Fig. 4. — Imago of the same. The last two figures 

 are of relative sizes. 



CoRTNA CLAVATA. (Pages 86 and 155.) 



Fig. 5. — Winged female. The larva is parasitic on 

 SiphonopJwra rosce, &c. 



