202 
BRITISH GALLS 
Acari 
Hymen- 
optera 
J 5 
Diptera 
Poterium Sanguisorba Linn. 74. Lesser Burnet. 
All the green parts of the plant and the inflorescence 
deformed, and covered with a felt of long yellowish or 
white variously contorted hairs. 
ERIOPHYES SANGUISORBAE Can. 496 
Syn. Phytoptus sanguisorbae Can. 
Connold, Veg. Galls, pi. 64; Plant Galls, fig. 81. 
Houard, No. 3103. 
Rosa spinosissima Linn. 94. Burnet-leaved Rose. 
Ovoid or reniform swellings on the stems, leaves, 
petioles, and flower buds, covered with minute spines and 
tinted green, purple, or bright red. Often conglomerated, 
and then attaining considerable dimensions ; sometimes 497 
fusiform or flattened. Each cell contains a single larva. 498 
Rhodites spinosissimae Giraud 499 
Connold, Veg. Galls, pi. 42 ; Plant Galls, fig. 259. 499^ 
Houard, No. 3239. 
Glabrous rounded swelling about the size of a pea, 
attached by a minute stalk to the upper surface of the 
leaflet, occasionally to a stem or a sepal. It is both 
solitary and gregarious. Tinted yellowish-green, brown, 
or red. 
Rhodites eglanteriae Hartig 500 
Houard, No. 3238. 
Rosa mollis Sm. (ft. villosa Linn.). 71. 
Pea-like swelling on the leaf. See No. 500. 
Rhodites eglanteriae Hartig 501 
Trail, 1878. Houard, No. 3138. 
On the inflorescence, stems (at the place of a bud) and 
leaves. A mass of small, rounded, very hard galls, each 
containing a larva, the whole covered with a shaggy mass 
of long pinnatifid hairs of a clear green colour, or more or 
less tinted with red. Dimensions variable. Autumnal. 
Rhodites rosae Linn. 502 
Trail, 1878. Houard, No. 3136. 502a 
502 h 
Leaflets folded upwards, the margins meeting and form¬ 
ing a pod, which is often tinted red or brown. Each pod 
contains numerous yellowish-red larvae. M. E. 
Perrisia rosarum Hardy 503 
Syn. Dasyneura rosarum Hardy ; Cecidomyia rosarum 
Hardy. 
Hardy, 1850, p. 186. Houard, No. 3135. 
