|She's probably a Banasa dimidiata, also called the Banasa stink bug.|
The name, "dimidiata" means "divided in half", referring, so some say, to the pattern on the pronotum (the front part of the thorax). And they're called stink bugs because of the offensive odour they emit when they're disturbed. A repugnatorial odour, it's called, produced by the repugnatorial glands.
They are found across Canada and the US, and are common in the Pacific Northwest. They feed on a variety of plants, including small fruits and berries.
|Another photo, with the barrels of eggs in sort-of focus.|
|Zooming in on those barrels. Aren't they cute?|