CATALOGUE OF BRITISH PLANT-GALLS 151 



Lepidop- 

 tera 



Dlptera 



151 



Hymen- 

 optera 



Diptera 



Lepidop- 

 tera 



Hymen- 

 optera 



152 



155 



Fusiform swellings on the older branches. See No. 1 1 5. 

 Grapholitha servilleana Dup. 

 Houard, No. 887. 



Elongated swelling on the yojing twigs (12 by 6 mm.), 

 coalescent, and split into wavy longitudinal furrows. This 

 gall resembles that of Cryptocampus a/^r (see No. 119). 

 It differs in having a very small internal cavity, containing 

 a greenish-white larva without a distinct head. 



Agromyza Schineri Giraud 



Connold, Veg. Galls, pis. 23, 24 ; Plant Galls, fig. 317. 

 Houard, No. 882. 



Terminal leaves forming a rosette. See No. loi. 



Rhabdophaga rosaria H. L6w 153 

 MacDougall, Journ. Bd. Agric, Oct., 1905. Houard, 

 No. 872. 



Male catkins deformed. See No, 88. 



Rhabdophaga heterobia H. Low 154 

 MacDougall, Journ. Bd. Agric, Oct., 1905. 



Fusiform swellings on one-year twigs. See No. 95. 



Rhabdophaga salicis Sch. 

 MacDougall, Journ. Bd. Agric, Oct., 1905. Connold, 

 Veg. Galls, pi. 28. Houard, No. 890. 



Salix cinerea Linn. X phylicifolia Linn. (5. laurina 

 Sm.). II. 



Oval or elongated swellings on the upper surface of the 

 leaf, usually in pairs. 



Pontania femoralis Cameron 1 56 



Syn. Nemaius ischnocerus Thorn- 



Cameron, ii., p. 196.. Houard, No. 946. 



Bean-like swelling on the leaf. See No. 107. 



Pontania vesicator Bremi 1 57 

 Connold, Plant Galls, p. 237. Houard, No. 945. 



Salix repens Linn. 98. Creeping Willow. 

 Terminal leaves forming a rosette. See No. loi. 



Rhabdophaga rosaria H. Low i 58 

 Houard, No. 910. 



Fusiform swellings on the older branches. See No. 1 1 5. 



Grapholitha servilleana Dup. 159 



Houard, No. 917. 



Salix herbacea Linn. 31. Dwarf Willow. 

 Roundish bean-like swelling on the leaf. See No. 150. 

 As a rule, one gall on a leaf. Cameron says of the larva 

 that it is the only gall-inhabitiiig larva of the Ten- 



