Large Cimbex Sawfly

Deciduous woodlands, edges, and suburban areas near host trees like willow, elm, birch, and maple.

Adults feed on plant sap by cutting into twigs; larvae eat the leaves of deciduous trees.

Diurnal flyers that can be mistaken for hornets due to their size and buzzing sound; they undergo complete metamorphosis and larvae often curl into a spiral when disturbed.

Harmless to humans as they lack a stinger; they are minor defoliators but play a role in the food web as prey for birds and small mammals.