Wasps looking for a winter home?
What are theses wasps doing in my butterfly house? Will all of these overwinter there? Will they kill any butterflies that may also be using this house? What is that funk they are leaving on the outside of the butterfly house?
They are indeed looking for warmth or a winter home. All but the much larger queen will die though.
As far as overwintering butterflies, most species overwinter as younger stages- eggs, caterpillars or chrysalis. Here is a page from our blog from our website:
The "funk" is droppings.