Speranza argillacearia, the mousy angle moth, is a species of geometrid moth in the family Geometridae. It is found in North America. Its larval host is blueberry (Vaccinium) and another common name for it is the blueberry spanworm.https://bugguide.net/node/view/554947https://extension.umaine.edu/blueberries/factsheets/insects/197-blueberry-spanworm/
The MONA or Hodges number for Speranza argillacearia is 6282.
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