Butterflies, Moths, Dragonflies & Damselflies of Dayton, Ohio

LARGE MAPLE SPANWORM AND CURVE-TOOTHED GEOMETER

Curve-toothed Geometer. This species is somewhat similar to the Large Maple Spanworm (above), but the hindwing edge is more jagged or scalloped. 

Large Maple Spanworm. This is a very common species in our area. They are most numerous in August and September, but I have also found a few early individuals in June and July, and one exceptionally late individual on November 8th. 

Another Large Maple Spanworm. Notice the pointed edge on the bottom of each hindwing. Each hindwing ends in a single sharp point. 

I found this female Curve-toothed Geometer laying eggs on my garage door. You can see a mass of green eggs below the moth in this photograph. Attracted with UV light.

I find Curve-toothed Geometers every month from March through August. 

Curve-toothed Geometers are exceptionally good leaf mimics. 

Large Maple Spanworm, photographed at Sugarcreek MetroPark.