CATALOGUE OF BRITISH PLANT-GALtS 191 



Brassica oleracea. Cabbage. 

 Coleop- Irregularly globular swellings, 12 mm. to 15 mm. 



tera 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 sulcicollis GylL, nee 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 Bouch^ 409 

 Syn. Anthomyia brassicae Bouch6. 

 Connold, Plant Galls, p. 90. Ormerod, p. 25. 



Homop- Discoloured blisters and wrinkles on the upper surface 

 tera 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. 



KTematoda Lateral swellings on the slender root fibres. The eel- 

 worms live on the surface of the galls ; there is no internal 

 cavity. 



Heterodera schachtii Schmidt 41 1 

 Connold, Plant Galls, p. 75. 



Fungi Swollen white patches on stems, leaves, etc. See 



No. 394. 



Cystopus candidus Lev. 412 

 Massee, Textbook of Plant Diseases, p. 59. 



Myce- Roots swollen. See No. 381. 



t(soa Plasmodiophora brassicae Wor. 413 



Massee, Textbook of Plant Diseases, p. 334. 



Brassica napus Linn. Rape. 

 Coleop- Root swollen. See No. 402. 



tera 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. 



Root swollen. See No. 409. 



Phorbia brassicae Bouch6 416 

 Conndd, Plant Galls, fig. 299. 



