CATALOGUE OF BRITISH PLAl^T-GALLS 245 



Diptera Capitulum swollen. 



DiPTERON sp. 833a 

 A. Miiller, 1870*, p. 5; Fitch, 1879, p. 259. Houard, 

 No. 5751. 



Artemisia Absinthium Linn. 74. Common Worm- 

 wood. 

 >i Twig swollen. 



OXYNA TESSELLATA H. Low 833 



Syn. Tephritis tessellata H. Low. 

 Houard, No. 5765. 



Artemisia vulgaris Linn, i lo. Mugwort. 

 i> Very small, ovoid pustules on all parts of the upper 



surface of the leaf. M. G. and M. E. Imago, escapmg 

 by an aperture on the superior surface. 



Rhopalomyia foliorum H. Low 834 

 Syn. Cecidomia foliorum H. Low. 

 Fitch, 1881, p. 22. Connold, Plant Galls, p. 132. 

 Houard, No. 5824. 



Homop- 

 tera 



Fungi 



Diptera 



Lepidop- 

 tera 



Leaves deformed, thickened and folded downwards ; 

 the terminal ones are bunched; bright red or golden - 

 yellow. Aphis greyish-black with reddish eyes. 835 



Cryptosiphum artemisiae Pass. 836 



Connold, Plant Galls, pp. 132, 133. Houard, No. 5819, 

 5825. 



Tussilago Farfara Linn. 1 12. Colt's-foot. 



Slightly thickened, yellow spots on the leaves, often 

 surrounded by a violet margin. Spores orange-yellow. 

 June and July. 



Aecidial state of PucciNiA poarum Nielsen 837 



Syn. Aeciditim compositarum Mart., var. Tussilaginis 

 Persoon, 



Plowright, p. 168. 



Senecio vulgaris Linn. 112. Common Groundsel. 

 Flower receptacle swollen, forming an ovoid gall con- 

 taining numerous larvae. M. G. 



Urophora macrura H. LOw 838 

 Connold, Plant Galls, p. 245. 



Senecio Jacobaea Linn. 112. Common Ragwort. 

 Stem swollen. M. G. Imago, spring, I. 



PhalOnia atricapitana Steph. 839 

 Syn. Conchylis atricapitana Steph. 

 Houard, No. 5868. 



