Caterpillar foods:  larvae feed in groups on willow, birch and poplar  (Bugguide)

This species overwinters as an adult, so we see them flying early in spring and late in the fall.  The adults feed on tree sap and rotting fruit.  Their numbers vary – some years we see a lot, some years almost none.

4/8/2023

4/8/2023

9/7/2009

4/14/2009  feeding on tree sap

4/14/2009

4/14/2009

6/7/2009  I found a lot of these caterpillars in 2009.  This one was eating elm leaves.

6/10/2009  older larva making a silk pad on an elm leaf

6/17/2009  larva ready to pupate

6/15/2009  chrysalis

6/15/2009  chrysalis

6/27/2009  newly emerged adult

7/4/2009  newly emerged adult

7/4/2009  newly emerged adult