GALL MLTES, 



357 



The remarks which we have made as to the extreme rarity of 

 the occasions on which the Phytopti have been observed inside 

 the lime nail-gall apply equally to this gall. Very i^^;^ people 

 have seen them in it ; but still they have been observed. The 

 appearance of the gall on the leaf, and a magnified section of the 

 gall (full of hairs) is shown in the woodcuts. The colour of .the 

 gall is bright red carmine or even purple, and when it grows on 



Volvulifex aceris produced by Phytoptus, 



Section of gall of Volvulife) 

 aceris. 



the variegated sycamore (Acer pseudoplatanus, var. Leopold!), 

 the contrast of the bright carmine galls with the pale yellow leaf 

 is very beautiful and attractive. The Phytopti that are found in 

 these galls are yellowish-white. 



Phytoptus myriadeum (Cephaloneon myriadeum, Bremi). — 24. Specimen 

 of leaves of common maple covered with these galls ; 26. Sketch of 

 ditto. 



These have usually been considered the same as the preceding 

 gall on the sycamore ; but we have little doubt that it is Bremi's 

 species above named, with which it agrees. 



