What are the chances of seeing a Bramble Mason Wasp in Boston?
With luck
About 10% of wildlife watchers report a Bramble Mason Wasp sighting in Boston on a given day, based on 115 verified sightings from GBIF citizen-science data. It is the 141st most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.

