September 29, 2023

3 Bugs That Look Like Stink Bugs!

In the world of insects, appearances can be deceiving. Stink bugs are known for their distinctive shape and, of course, their notorious odor when threatened. But did you know that there are other insects out there that could easily be mistaken for stink bugs?

In this blog, we'll take a closer look at these clever insect impersonators, highlighting their similarities and differences and shedding light on the fascinating world of mimicry in the bug kingdom.

Bugs That Look Like Stink Bugs

Many bugs can look like stink bugs, making it easy to get them mixed up. Even though they might seem similar, not all of these bugs come with that unmistakable stink bug stench. Take a look at these pests you may see around your home or property to get an idea of these stink bug imposters.

Western Conifer Seed Bugs

The western conifer seed bug (Leptoglossus occidentalis) is an insect commonly mistaken for a stink bug due to its similar appearance and occasional tendency to emit a foul odor when disturbed. Here's some information about this bug and why it's often confused with stink bugs:

Physical Appearance:

  • The western conifer seed bug is brownish-gray with distinct dark markings on its back.
  • It has a shield-shaped body, which is a common feature shared with stink bugs.
  • Its body size ranges from 1/2 to 3/4 inches in length, making it similar in size to some stink bug species.


  • As the name suggests, this bug is often associated with conifer trees, mainly pine and spruce trees. It feeds on the sap of these trees and can sometimes be found on the needles, cones, or branches.
  • During the fall and winter, western conifer seed bugs may seek shelter indoors, similar to stink bugs, as they search for a warm place to overwinter.


  • When disturbed or crushed, western conifer seed bugs can release a chemical odor that some people describe as unpleasant or similar to the odor produced by stink bugs.
  • This defensive odor is one reason for the confusion.


  • Western conifer seed bugs can enter homes and buildings like stink bugs, seeking warmth as the weather turns cooler.
  • They are not known to harm humans or pets and do not bite or sting.

While these bugs resemble stink bugs, their markings can distinguish them. Western conifer seed bugs typically have distinctive white zigzag lines on their wings, which stink bugs lack.

Stink bugs are often more uniformly shaped, with a shield-like appearance that is wider at the front. Depending on the species, stink bugs usually come in various colors, including green, brown, or mottled patterns.

Boxelder Bugs

Boxelder bugs (Boisea spp.) are often mistakenly identified as stink bugs due to their similar body shape and occasional tendency to enter homes for warmth during the cooler months. Here's more information about boxelder bugs and why they can be confused with stink bugs:

Physical Appearance:

  • Boxelder bugs are typically black with striking reddish-orange markings on their wings and bodies.
  • They have a distinctive shield-like shape, similar to stink bugs, which can contribute to the confusion.

Habitat and Behavior:

  • Boxelder bugs are often found near boxelder, maple, and ash trees, feeding on the seeds, leaves, and sap.
  • As temperatures drop during the fall and winter, boxelder bugs may seek shelter indoors, similar to stink bugs, to escape the cold.


  • Unlike stink bugs, boxelder bugs do not produce the strong, foul odor that stink bugs are known for.
  • Instead, they leave behind a bright orange stain when squashed.

Size and Shape:

  • Boxelder bugs are typically smaller than stink bugs, measuring about 1/2 inch long.
  • While they share a similar shield-like shape, boxelder bugs often appear flatter and less convex than stink bugs.


  • The most noticeable difference between boxelder bugs and stink bugs is their coloration.
  • Boxelder bugs have distinctive black and red-orange markings, while stink bugs can vary in color but are typically solid green, brown, or mottled.


  • Boxelder bugs have long, slender antennae.
  • Stink bugs have shorter, thicker antennae.

If you see a black and orange bug, rest assured that you don’t have a stink bug infestation. However, don’t squash these pests if you see them indoors; they can leave behind an intense, bright orange hue.

Assassin Bugs

Assassin bugs, including species like the wheel bug (Arilus cristatus), can be mistakenly identified as stink bugs due to body shape and size similarities. Here's more information about assassin bugs and why they may be confused with stink bugs:

Physical Appearance:

  • Assassin bugs have a somewhat similar shield-like shape to stink bugs, with a broadly oval body.
  • They can be larger and more elongated than typical stink bugs.


  • Depending on the species, Assassin bugs can range from about 1/2 inch to over an inch in length, making them larger than many stink bugs.
  • This larger size may contribute to their misidentification, especially when encountered from a distance.


  • Assassin bugs come in various colors, including brown, black, or green, depending on the species.
  • Stink bugs, however, are typically green, brown, or mottled in appearance.


  • One of the key distinguishing features of assassin bugs is their long, slender, and sharp proboscis, which they use to pierce their prey and inject digestive enzymes.
  • Stink bugs have shorter mouthparts and do not possess this specialized piercing-sucking structure.


  • Assassin bugs are predatory insects that primarily feed on other insects, including pest species, while stink bugs are herbivores and feed on plants.
  • Assassin bugs are known for controlling pest populations in gardens and agricultural settings.


  • Assassin bugs are often found in gardens, meadows, and other outdoor environments where they hunt for prey.
  • Stink bugs can also be found in gardens but may also venture into homes seeking shelter.

While assassin bugs aren’t those smelly home invaders, watch out if you run into one of these pests! Their stinging bite is quite painful.

No matter what bug infests your home, Zunex is here to help! We are masters at stink bug control, hitting these pests where it hurts. Our highly skilled technicians employ cutting-edge methods and top-notch products to pinpoint stink bug hiding spots, effectively deterring potential future infestations.

Contact us today!

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