152 



BRITISH GALLS 



Coleop- 

 tera 



Lepidop- 

 tera 



Fungi 



Coleop- 

 tera 



Lepidop- 

 tem 



Fungi 



thredinidae which bears regularly arranged marks on the 

 body. Scotland and Cumberland. 



PONTANIA PROXIMA Lepel i6o 



Syn. Nematus herbacea Cameron. 



Connold, Plant Galls, fig. 316. Cameron, ii., p. 203. 

 Houard, No. 1013. 



Fopulus alba Linn. 70. White Poplar. 



Fusiform or rounded swellings on the twigs and small 

 branches, with a cavity in the pith containing a large 

 yellowish-white larva. M. G. 



Saperda populnea Linn. 161 



Houard, No. 476. 



Branch swollen, the long larval cavity, tio mm. by 

 4 to 5 mm., opening at the exterior in the centre of an 

 irregular lateral nodosity. M. G. 



SCIAPTERON TABANIFORME Rott., var. RHINGIAE- 



FORME Hiibner 162 



Houard, No. 6218. 



Young branches slightly swollen, with shortened and 

 distorted ramification. 



Gypsonoma aceriana Dup. 163 

 Syn. Hedya aceriana Barrett. 

 Houard, No. 478. 



Convex blisters or swollen patches on the upper surface 

 of the leaf, with a corresponding concavity below, up to 

 I cm. across, golden-yellow. 



Taphrina aurea Fries. 164 



Syn. Ascomyces aureus Magnus., Exoascus aureus 

 Sadebeck, Exoascus populi Thiim. 



Massee, Textbook Plant Diseases, p. 91. 



Fopulus alba Linn, x tremula {P. canescens Sm.). 49. 

 Grey Poplar. 



Fusiform or rounded swellings on the branches. See 

 No. 161. 



Saperda populnea Linn. 165 



Houard, No. 517, 



Young branches swollen near the apex, 20 mm. long 

 by 12 mm. in diameter, yellowish or light brown. 



Gypsonoma aceriana Dup. 166 



Syn. Hedya aceriana Barrett. 



Connold, Veg. Galls, pi. 36; Plant Galls, fig. 250. 

 Houard, No. 518. 



Convex blisters on the upper surface of the leaf. See 

 No. 164, 



Taphrina aurea Fries. 167 

 Massee, Textbook Plant Diseases, p. 91. 



