1 82 BRITISH GALLS 



Rumex Acetosella Linn. 112. Sheep's Sorrel. 

 Coieop- On the roots and the subterranean part of the stem, 

 tera Rounded swellings varying in size from a pea to a nut, 

 each containing a white larva. 



Apion sanguineum De Geer. 336 

 Houard, No. 2130. 



„ On the leaf. Swelling on midrib or the petiole. See 



No. 334. 



Apion frumentarium Linn. 337 

 Houard, No. 2139. 



On the leaf. Midrib or petiole swollen. See No. 335. 



Apion humile Germar 338 

 Houard, No. 2140. 



CHENOFODIACEAE 



Chenopodium album Linn. 112. White Goose-foot. 

 Homop- Leaf margin loosely revolute, hypertrophied and dis- 

 tera coloured. Aphis (oviparous ? ) glaucous green, with 

 two occipital smoky spots ; larva variously coloured, from 

 green to olive and black. 



Aphis atriplicis Linn. 339 

 Houard, No. 2182. 



Atriplex patula Linn. 93. Orache. 



Leaf deformed. Margins revolute, forming two hollow 

 pods. Greenish-yellow at first, brown at maturity. June 

 to September. See also No. 339. 



Aphis atriplicis Linn 340 



Connold, Veg. Galls, pi. 101 ; Plant Galls, fig. 233. 

 Buckton, ii., 87. Houard, No. 2197. 



„ Leaf irregularly wrinkled at the margin. 



Trioza atriplicis Licht 341 

 Syn. Trioza chenopodii Reut. 



Scott, Ent. Mag., 1881, voL xviii., p. 275. Houard, 

 No. 2198. 



Atriplex hastata Linn. 95. Halberd-leaved Orache. 

 „ Leaf margin rolled upwards. See No. 339. 



Aphis atriplicis L. 342 

 HoQard, No. 2204. 



