PLATE 117. 

 A. Stem and leaf of Rubus fruticosus Linn. 



(Nearly nat. size.) 

 Galled by 



LaBioptera rubi Schrk. 



A fine specimen, with a large gall on the stem and two 

 small galls on the petiole. See also plate 31. 



B. Twig of Populus tremula Linn. 



(Two-thirds nat. size.) 

 With petioles galled by 



Diplosis tremulae Wtz. 



A very fine specimen, illustrating the globular form of 

 growth. Sixteen galls on eleven petioles ; two petioles with 

 three galls on each. See also plate 94. 



The illustrations are of specimens gathered at Hastings by 

 the author. 



