BROWSING OPTIONS: Gall Names Gall Appearance Type of Tree Compare Galls

Phyllocoptes magnificus
Tree type:
Acer platanoides
Photo: The brown, hairy swellings in the vein angles of this Norway Maple leaf are the galls of Phyllocoptes magnificus. Click on the image for a VERY large (2.5 MB) file (the size is necessary to preserve detail), or look at the smaller picture on the right for a close-up of the small growths. Click for Full Size Image

Gall maker: Phyllocoptes magnificus, a mite. (Class Arachnida, Order Acari, Family Eriophyidae). Like most members of Eriophyidae, these mites produce erineum.

Shape and Size: Erineum. Very small, hairy growths in clusters of variable size.

Location: In vein angles on underside of Norway Maple (Acer platanoides) leaf surface.

Color: Brownish.

Source: Felt, P. E. Plant Galls and Gall Makers.
Jodhpur, India: Agrobios, 2001.
p 285.