CATALOGUE OF BRITISH PLANT-GALLS 191 
Coleop- 
tera 
Brassica oleracea. Cabbage. 
Irregularly globular swellings, 12 mm. to 15 mm. 
across, at the base of the stem, solitary or coalescent. 
Each containing a single white larva. M. E. Spring, II. 
Ceuthorrhynchus pleurostigma Marsh 408 
Syn. Ceuthorrhynchus sulcico/lis Gyll., nec Payk. 
Connold, Plant Galls, p. 90. Ormerod, p. 35. 
Diptera 
Large irregular swellings and mammillated protuber¬ 
ances on the root and rootlets, coalescing when numerous. 
Phorbia brassicae Douche 409 
Syn. Anthomyia brassicae Bouche. 
Connold, Plant Galls, p. 90. Ormerod, p. 25. 
Homop- 
tera 
Discoloured blisters and wrinkles on the upper surface 
of the leaf. Aphides congregate below. Aphis greyish- 
green with black spots, covered with a whitish mealy coat. 
Larvae at first oval, shining, bright yellow. 
Aphis brassicae Linn. 410 
Buckton, ii., 34. Houard, No. 2578. 
Nematoda Lateral swellings on the slender root fibres. The eel- 
Fungi 
worms live on the surface of the galls ; there is no internal 
cavity. 
Heterodera schachtii Schmidt 4:1 
Connold, Plant Galls, p. 75. 
Swollen white patches on stems, leaves, etc. See 
No. 394. 
Cystopus candidus Lev. 412 
Massee, Textbook of Plant Diseases, p. 59. 
Myce- 
tozoa 
Roots swollen. See No. 381. 
Plasmodiophora brassicae Wor. 413 
Massee, Textbook of Plant Diseases, p. 334. 
Coleop- 
tera 
Brassica napus Linn. Rape. 
Root swollen. See No. 402. 
Ceuthorrhynchus pleurostigma Marsh 414 
Connold, Veg. Galls, pi. 8. Houard, No. 2597. 
Diptera 
Seed-pod slightly swollen, tenanted by numerous non¬ 
leaping larvae. M. E. 
Dasyneura brassicae, Winn. 415 
Syn. Cecidomyia brassicae Winn. 
Houard, No. 2591. 
99 
Root swollen. See No. 409. 
Phorbia brassicae Bouch£ 416 
Connold, Plant Galls, fig. 299. 
