LIST OF SMALL ILLUSTRATIONS 



62 



72 



1. — A pail' of Nippers ....... 



2. — A Pruner ........ 



3. — A Fern-trowel ....... 



4. — Mm., Cm., and lucli Scale 



5. — Galls caused bv Andricus (jJandulx : a, young x 2^ 

 B, mature x 2| ; c, section x 2^ 



6. — Galls caused by Andricus testaceipes on petiole and mid- 

 rib of leaf ........ 



7. — Galls caused by Aphilotlirix albojmnctata, illustrating 



variability in situation, form, and markinff ... 74 



8. — Galls caused by Apliilotlirix coUaris : a, in situ, nat. ; 



B, enlarged, x 4 ; c, scales removed, x 4 . . .80 

 9. — Galls caused by Aphilothrix Malpicjhii .... 88 



10. — Galls caused by Ajjhilothrix Sieboldi, typical shapes and 



situations ......... 98 



11. — Sections of galls caused by: a, Bryophanta agama ; 



B, JD. disticha ; c, D. divisa ...... 109 



12. — Three aspects of the same specimen of D. disticha: 



A, side ; B, top ; c, end ...... Ill 



13. — Sectional aspect of specimen of D. longiventris : a, cross; 



B, longitudinal ; c, transverse ' . . . . .114 

 14. — Galls caused by Nenroterus 7a?i;n<sc«Z«s on upper-surface 



of leaf ; variations in form, etc. ..... 119 



15. — Diagrammatic sections of N. lentictdaris, N. fumipennis, 



N. Ixviusculus ........ 121 



16. — Section of gall caused by iV. Ze/i^icMZam . . .121 



17. — Galls caused by Spathegaster verrucosus . . .135 



