PLATE XVII. 



Fig. 1. — Xestophanes potentillse, gall. 



Fig. 2. — Andricus albopunctata, ovipositor. 



Fig. 3. — Andricus corticis, gall. 



Fig. 4. — Cynips Kollari, larva, 3 figures ; 4 a, pupa, 

 3 figures. 



Fig. 5. — Cynips gemmae, gall. 



Figs. 6, 6 a. — Gall of Andricus sp. (after Ormerod), 

 see p. 108, where fig. 8 is printed in error for fig. 6. 



Fig. 7. — Gall of Andricus sp. (after Ormerod), see 

 p. 108, where fig. 9 is printed in error for fig. 7. 



Fig. 8. — Biorhiza aptera, gall. 



