Subject: Beetle in Michigan’s Upper Peninsula
Location: Marquette County, Michigan
July 28, 2014 9:16 am
Found this beetle last week on bedrock at Wetmore Pond, in Michigan’s Upper Peninsula in boreal habitat. Appears to be a longhorn or some type of sawyer?
Signature: Mike Sherman
This beautiful Longicorn is a Round Headed Apple Borer, Saperda candida, and according to Arthur V. Evans in his new book Beetles of Eastern North America: “Larvae attack many deciduous hardwoods, including orchard and ornamental trees.” According to BugGuide: “Larvae feed on the wood of apples (Malus) and related trees in the rose family, such as pear (Pyrus), hawthorn (Crataegus), mountain ash (Sorbus) and Saskatoon (Amelanchier). Also: Aronia, Cotoneaster, Cydonia, Prunus” and “These insects seek out trees which are already weakened due to some other stress. A heavy infestation can kill a tree.”