I found this bug months ago (August, in southern Maine): I found it crawling on my wall, (second floor), only time I've ever seen one of these particular bugs in my house.

Edit: I managed to get a rough measurement based on another photo I had, and it seems to have been about 0.7 inches long (from top of head to bottom end of body) and 0.2 inches wide at widest part ("shoulders")

enter image description here

  • I'm guessing a longhorn borer of some sort.
    – bob1
    Jan 31, 2021 at 7:57

1 Answer 1


Found it - almost certainly the Poplar-borer beetle (Saperda calcarata). Distinguishing characteristics are the golden/yellow spots under the black speckles. Borers all have that shape to the head and thorax. Longhorn indicates the long antennae.

These are quite a destructive pest of poplar and a few other species in much of North America.

Note I'm not an entomologist of any sort, or even from North America - just good at googling things.

  • Oh No!! Sob!!! Chestnut, hemlock, ash, boxwood, now poplar?
    – ab2
    Jan 31, 2021 at 19:14
  • @ab2 - not just poplar, this one will go for a bunch of different trees, including aspens and cottonwoods.
    – bob1
    Feb 1, 2021 at 0:46

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