Aceria elongata

Aceria modesta

Aceria major

Aculus minutissimus

Aculus quinquilobus

Aceria negundi

Vasates quadripedes

Aceria spicati

Rhyncaphytoptus magnificus

Eriophyes elongatus sp. nov.

Described from individuals found among red erineum galls on the upper surfaces of leaves of the sugar maple, Acer saccharum L.

[Eriophyes maculatus is also described from galls of an identical description; later work treats that species as an inquiline of elongatus]

Eriophyes regulus sp. nov. 

Described from individuals found among red erineum galls on the upper surfaces of leaves of the sugar maple, Acer saccharum L.

Eriophyes modestus sp. nov.

Described from individuals found among greenish erineum galls on the under surface of leaves of the sugar maple, Acer saccharum L.

Eriophyes major sp. nov.

Described from individuals found among galls of pinkish erineum on the under surface of leaves of the red maple, Acer rubrum.

Eriophyes ornatus sp. nov.

Described from individuals found among galls of pinkish erineum on the under surface of leaves of the red maple, Acer rubrum.

Phyllocoptes minutissimus, sp. nov.

Described from individuals found among red erineum galls on the upper surfaces of leaves of the red maple, Acer rubrum L.

Phyllocoptes quinquilobus, sp. nov.

Described from individuals found among pinkish erineum galls on the under surfaces of leaves of the red maple, Acer rubrum L., Causes whitish or pinkish erineum galls on the lower surfaces of leaves.

Eriophyes negundi

Described from individuals found in wart-like swellings of leaves of the black maple, Acer negundo L.

Described from individuals found associated with P quadripes Shimer in bladder galls on the leaves of the soft maple, Acer saccharinum.

Eriophyes parallelus sp. nov.

Described from individuals found in a whitish erineum on the under surfaces of leaves of the mountain maple, Acer spicatum L., collected by Prof. F.C. Stewart at Seventh Lake, Adirondack Mountains, New York.

Phyllocoptes magnificus 

Described from individuals found in epidermal hairy growths which occur in the axils of the veins on the under surfaces of leaves of the Norway maple, Acer platanoides L.

New Species of Maple Mites