The wings are held at about right angles to each other, distinguishing them from those of A. platanoides and A. campestre, in which the wings are almost opposite, and from those of A. saccharum, in which they are almost parallel.
Krídla sú spojené približne v pravom uhle a líšia sa od krídel A. platanoides a A. campestre, ktoré majú krídla takmer opačné, a aj od krídel z A. saccharum, ktorý ich má takmer paralelné.