AI.TKKATIOX Ol" FOKM UV ( . AI.I.-l'ltODl'CINl i INSECTS. 



:.H 



several Cynipedes, e.g. Apküotrij Siilmlili (see ti^. :iti 1 ' i lav their e^s in ihe given 

 cortex of the young bwiga Solid galls are very rar.- on roots, but they do occur 



Fig. 364.— Various Oak-galls. 



' Solid galls on the cortex produced by Aphilothrix SieboUi. * Bud-gall from a (oliage-bud produced by Cynips ilartigii. 

 1 Solid galls on an Oak twig produced by Cynips Kollari. * One of these galls cut in half. 5 Bud-galls from foUlge-bndfl 

 produced by Cynips lucida. « One of these galls cut in half. ' Leafy bud-galls produced by Aphiiothrix gemma. 

 8 Bud-galls from foliage-buds produced by Cynips polyccra. '> Longitudinal section through one of these galls. 10 Gall 

 on the pericarp of Quercus pubescent produced by Cynips caput-medusce. n- u Spangle galls on a leaf of the Türke) < ».ik 

 (<^u«rctu Cerrti); " produced by jVeuroteru« lanuginosus ; 12 by Xeurottrut numismatu , '» by N curolerus fumipennit ; 

 u by SpatKegasUr tri 



in this situation in the oak, being produced by the gall-wasps Aphilothrix radicis 

 and Biorhiza aptera. 



