RECORDS OF SOME NEW BRITISH PLANT-GALLS. 249 
Perrisia abietiperda, Henschel. 
Picea excelsa, small barrel-shaped galls on young branches. 
NorTHUMBERLAND, near Hexham. 
Duraanm, Gibside, Hasteate, R.S.B. 
Perrisia laricis, F. Loew. 
Larch (Laria europaea), bud deformed into a scaled cone-like 
gall; larva rose-coloured. 
Duruam, Lanchester, J.W.H.H., and Winlaton Mill, R.S.B. 
Yorxsuire, Hston, J.W.H.H. 
Perrisia ballotae, Rubs. 
Ballota nigra, flower remaining closed. 
NortaumeBerztann, Denton Burn, R.S.B. and H. S. Wallace. 
Perrisia brauerit, Handl. 
A bud-like root-gall on Hypericum pulchrum. 
NorTHUMBERLAND, near Staward, and Duruam, near Lanchester, 
R.8.B. 
Perrisia, sp. (Houard, no. 5,289). 
Galiun verum, small terminal rosette with leaves purple. 
Duruam, Penshaw district, affecting one clump, R.S.B. 
Perrisia lupulinae, Kieff. 
As in Asphondylia lupulinae, but pilose, and larve greearious. 
Duruam, near Burnmoor, R.8.B. 
Perrisia gentianae, Kieft. (= Houard, no. 4,696). 
Gentiana campestris, flower closed, somewhat swollen. Containing 
several creamy-yellow larve. 
Durxam, not uncommon on Penshaw Hill, R.S.B. 
Although not in Swanton this species is recorded by Houard from 
the British Isles and from nowhere else. 
Perrisia holosteae, Kieff. 
Steilaria graminea, in fruit capsule, which remains somewhat small 
and slightly aborted; larve white. This and the next species are 
recorded abroad from 8S. holostea. 
NortHUMBERLAND, Carsbog, between Langley Woods and Whit- 
field, R.S.B. 
Perrisia silvicola, Kieft. (= Houard, no. 2,311). 
Stellaria graminea, two upper leaves together, feebly hypertrophied 
and concave basally, containing larve. 
NorTHUMBERLAND, Carsbog, R.S.B. 
Perrisia praticola, Kieff. 
Ragged-robin (Lychnis flos-cucult), flowers remaining closed, small: 
larve reddish, gregarious. 
Duruam, Gibside, R.8.B., Billingham, J.W.H.H. In both cases 
too late to get the larve. 
