Subject: Nest
Location: Southwestern Pennsylvania 18mi north of Pittsburgh
May 19, 2013 10:17 pm
Today I photographed and interesting cocoon like nest, with a bunch of something(maybe insects) inside.
I’ve never seen a nest like this in the trees. It may, for all I know, it may be a small, tent caterpillar’s nest.
But the ones I’ve always seen are much larger.
I didn’t dig into the nest to find out ’cause I didn’t want to intrude on the bugs. Any Ideas?
Signature: Rich
Dear Rich,
We agree with you that this might be the newly started nest of a recently hatched colony of Eastern Tent Caterpillars. We will try to get a second opinion from Eric Eaton. More information on the Eastern Tent Caterpillar can be found on BugGuide. As an aside, we will be flying into Pittsburgh in a few weeks to visit family.
Eric Eaton provides another possibility
Daniel:
Tough call. I’m thinking Fall Webworm, as they tend to make webs on the outer reaches of branches, whereas tent caterpillars build webs in the crotches of branches, often several “tents” to one tree, or in a series of trees close to each other. Fall Webworm tends to have more isolated colonies.
Eric





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