• What is this beetle in my house?

    Question

    I found this beetle in my house last night. As you can see in the photo, it is not quite a centimeter long. I would appreciate any help in trying to identify it from among the gazillion beetles out there.

    Naturalist's Response

    Thanks for sending pictures of your critter.  It is not a beetle, but rather one of the stinkbug species. The photos get fuzzy when I tried to enlarge them, but I’m fairly certain that this is a Brown Marmorated Stinkbug nymph (an immature individual).

    The Brown Marmorated Stinkbug is an invasive species from Asia that has been invading people’s houses. They are more commonly found inside people’s houses when the weather turns cooler in the fall since they need a place to overwinter. It would make sense then, in July, that this one was not fully mature yet.

    While supposedly harmless to humans, they can wreak havoc on fruit trees and other plants. They have piercing, sucking mouthparts and feed on plant and fruit juices. If you’ve ever peeled an apple and noticed a bunch of brown spots on the flesh underneath, it’s probably the work of this particular stinkbug.

    Here is a link to a nymph photo, and here is an amusing link to a blog post about this particular critter by one of Ohio’s premier naturalists, Jim McCormac.

    -Naturalist Linda Gilbert