228 



BRITISH GALLS 



Mentlia arvensis Linn. 1 1 1. Corn Mint. 



Coleop- Unilocular swelling on the stem, ovoid or spherical, 



tera 4 to 6 mm. long, 2 to 3 mm. in diameter ; red, situated 



just above the upper nodes ; the walls are at first thick 



and fleshy, becoming thin and hard at maturity. The 



cavity contains a citron-yellow larva. M. G. 



Apion VICINIUM Kirby 694 

 Houard, No. 4953. 



Fungi Stem swollen. See No. 690. 



PUCCINIA MENTHAE Persoon 695 

 Plowright, p. 157. 



Origanum vulgare Linn. 90. Common Marjoram. 

 Acari Inflorescence deformed, the whole forming a mass of 



white hairs, amongst which the mites creep. 



Eriophyes origani Nalepa 696 

 Connold, Plant Galls, fig. 154. Houard, No. 4901. 



Thymus Serphyllum Linn. 112. Wild Thyme. 

 Homop- Ovoid red swellings on the young shoots, not abnor- 

 tera mally hairy. Elongated abnormally pubescent red swell- 

 ings 3 to 4 mm. long, i to 2 mm. thick, on the stems. The 

 epidermis of the swelling does not crack. The internal 

 cavity contains a yellowish larva. M. G. 697^ 



Apion atomarium Kirby 698 

 Houard, Nos. 4918, 4922. 



Diptera Corolla completely altered, transformed into an ovoid 

 body with a large cavity, stamens and pistil absent. Calyx 

 much enlarged, twice the normal size, always exceeding 

 the corolla. The cavity contains a single red larva. 



Asphondylia thymi Kieffer 699 

 Trail, Scot. Nat., ii., 1873, p. 252. Houard, No. 4913. 



Acari 



Coleop- 

 tera 



Flower head and terminal leaves deformed, the leaves 

 elongated and swollen ; the whole covered with an abun- 

 dant white pilosity resembling cotton wool. May to 

 October. 700 



Eriophyes Thomasi Nalepa 701 



Connold, Plant Galls, fig. 293. Houard, No. 4920. 



Calamintha Acinos Clairv. (arvensis Lam.). 75. 

 Basil Thyme. 

 Ovoid swelling on the stem. See No. 694. 



Apion vicinium Kirby 702 

 Houard, No. 4896. 



