242 
BRITISH GALLS 
Homop- 
tera 
5 > 
Diptera 
n 
n 
Erigeron canadense Linn. Canadian Fleabane. 
Leaf margins thickened, discoloured, yellowish, be¬ 
coming slightly rolled in a screw-like manner. Aphis 
bright green, body pilose and slightly tufted with bristles. 
Aphis myosotidis Koch 804 
Houard, No. 5577. 
Filago Germanica Linn. 96. Common Cudweed. 
Inflorescence distorted, leaves more downy than usual. 
Aphis yellowish-green with black antennae and eyes, and 
plentifully covered with a white powder. 
Pemphigus filaginis Fonsc. 805 
Buckton iii., 129. Houard, No. 5590. 
Inula crithmoides Linn. 19. Golden Samphire 
Receptacle swollen, hard, without projections above. 
Multilocular. M. G. Imago, August, September, I. 
Myopites inulae Roser 806 
Houard, No. 5626. 
Receptacle swollen, hard, without projections above. 
Multilocular. M. G. Imago, August, September, I. 
Myopites frauenfeldi Schiner 807 
Houard, No. 5625. 
Pulicaria dysenterica Gray. 79. Fleabane. 
Receptacle swollen, almost woody. Imago, spring, II. 
Myopites inulae Roser 808 
Houard, No. 5635. 
Receptacle swollen, almost woody. Imago, spring, II. 
Myopites frauenfeldi Schiner 809 
Houard, No. 5634. 
Achillea millefolium Linn. 112. Milfoil. 
Capitulum not ripening, there is no visible deformity 
or hypertrophy. 
Tephritis dioscurea H. Low 810 
Houard, No. 5679. 
Spherical, fleshy, unilocular gall at the junction of root 
and stem, about the size of a pea. Often gregarious. 
Larva white. M. G. Imago, June and July. 
OXYNA FLAVIPENNIS H. Low 8ll 
Syn. Tephritisflavipenuis H. Low. 
Houard, No. 5682. 
