ROSACEAE 
205 
Acari 
5 5 
Hymen- 
optera 
Diptera 
> 5 
Homop- 
tera 
Acari 
Lenticular chocolate-coloured pustules on the leaves, 
gregarious, often coalescent. 
Eriophyes pyri Pagenst, var. variolata Nal. 522 
Connold, Veg. Galls, pis. 46, 76 b ; Plant Galls, fig. 36. 
Houard, No. 2913. 
On the leaf blade, usually on the inferior surface, a tuft 
of short, blunt, cylindrical or club-shaped hairs, whitish 
at first, becoming rusty brown. Erineum sorbeum Per- 
soon. 
Eriophyes sp. 523 
Greville, 1827, v., pi. 263. Houard, No. 29H. 
Pyrus communis Linn. 49. Pear Tree. 
Brilliant translucent pustules, usually solitary, showing 
equally on both surfaces of the leaf. 
Micronematus abbreviates Hartig 524 
Syn. Nematus abbreviatus Htg. 
Houard, No. 2872. 
Young fruit abnormally swollen, with numerous larvae 
within. May to July. M. E. 
CONTARINIA PYRIVORA Ridley 525 
Syn. Diplosis pyrivora Ridley. 
Connold, Veg. Galls, pi. 123; Plant Galls, fig. 240. 
Houard, No. 2855. 
Leaf margin rolled upwards and thickened, green or 
yellowish. 
Perrisia pyri Bouche 526 
Syn. Dasyneara pyri Bouche. 
Houard, No. 2864. 
Leaves rolled towards the base, margins shrivelled and 
crumpled. 
PSYLLA PYRISUGA Forst. 527 
Houard, No. 2867. 
Pustules on the leaves. See No. 519. 
Eriophyes pyri Pagenst 528 
Connold, Veg. Galls, pi. 59; Plant Galls, figs. 239, 348. 
Houard, No. 2871. 
Tufts of hairs, at first yellowish or reddish, becoming 
rusty brown, forming a felt occurring in patches on both 
surfaces of the leaf, but usually on the inferior one. 
Erineum pyrinum Persoon. 
Eriophyes sp. 529 
Greville, 1823, i., pi. 22. Houard, No. 2873. 
