10 Creepy—but Critically Endangered—Bugs You Shouldn’t Squish
These remarkable insects may seem unsettling, but they play vital roles and urgently need our protection.

If you’re tempted to squish a bug just because it looks unsettling, consider this: many of the world’s creepiest insects are not only critically endangered. These misunderstood animals play essential roles in our environment, from pollination and pest control to recycling nutrients. Below, we explore 10 of the most fascinating—if sometimes unnerving—insects whose survival hangs in the balance, and why sparing them is critical for us all.
The Importance of Protecting Endangered Insects
Despite their abundance and diversity, bugs are facing alarming declines worldwide. Scientists warn that we are witnessing not just species loss, but the collapse of entire insect populations, threatening food webs, crop pollination, and soil health. Habitat loss, climate change, pesticide use, and pollution are just some of the factors behind these declines, creating a devastating domino effect throughout ecosystems.
- Insects make up 80% of all known animal species.
- Biodiversity loss is most pronounced among insects, with dramatic declines in many regions.
- Pollinators like bees, moths, and beetles are vital for human agriculture and wild plant populations.
1. Lord Howe Island Stick Insect (Dryococelus australis)
One of the world’s rarest insects, the Lord Howe Island stick insect is a giant, flightless nocturnal creature native to a remote island off Australia. After rats invaded the island in 1918, the species vanished from sight and was believed extinct until a small population was rediscovered on a rugged rock called Ball’s Pyramid in 2001.
- Threats: Invasive species, habitat destruction, and climate instability.
- Conservation: A captive breeding program is reintroducing them to their original island home.
- Why They Matter: Stick insects are a key food source for birds and keep plant growth in check.
2. American Burying Beetle (Nicrophorus americanus)
Once widespread across North America, the American burying beetle now survives in only a fraction of its original range. As a decomposer, it plays a critical role in recycling nutrients by burying and consuming animal carcasses, enriching the soil.
- Threats: Habitat loss, pesticide use, and declines in available carrion.
- Conservation: Federally listed as endangered with ongoing habitat restoration efforts.
- Why They Matter: Their activities help prevent the spread of disease by removing dead animals from the environment.
3. Lord Howe Island Phasmid (Spinotectarchus acornutus)
Another remarkable inhabitant of Lord Howe Island, this cryptic stick insect relies on camouflage to avoid predators. Sadly, it shares similar fates and threats as its better-known cousin, facing acute risks from invasive rodents and habitat degradation.
- Threats: Rat predation and habitat loss.
- Conservation: Predator control and habitat restoration are vital.
4. Rusty Patched Bumble Bee (Bombus affinis)
This unassuming bee might not appear creepy, but its decline is deeply alarming. Once common in North America’s prairies, it now occupies less than 1% of its previous range.
- Threats: Pesticides, disease, loss of wildflowers, and climate change.
- Conservation: The first bee species in the continental U.S. to be federally listed as endangered.
- Why They Matter: A powerful wild pollinator, essential for both wild plants and crops.
5. Hawaiian Happy-Face Spider (Theridion grallator)
This small, cryptic spider gets its name from the strangely cheerful, face-like patterns found on its abdomen. It’s unique to Hawaii, hiding under leaves by day and spinning tiny webs by night.
- Threats: Habitat loss, invasive predators, and deforestation.
- Conservation: Forest protection and invasive species management are ongoing.
- Why They Matter: Play a crucial ecological role as insect predators within fragile island ecosystems.
6. Lord Howe Island Stick Insect: A Closer Look
Its size and armor-like body are imposing, but this gentle herbivore is harmless and helps balance the island’s vegetation. At risk due to its bespoke habitat and slow reproduction rate, each adult plays a big role in maintaining local biodiversity.
- Ecological Services: As primary consumers, they are a food base for native predators and help recycle nutrients.
- Significance: Their dramatic rediscovery underlines the value of persistent conservation efforts.
7. American Burying Beetle: Nature’s Undertaker
Don’t let its imposing jaws or glossy black-and-orange body fool you—the American burying beetle’s business is hygiene. It single-handedly cleans the environment, by burying and feeding upon small animals that would otherwise rot above ground.
- Parenting Behavior: These beetles exhibit unusual care, feeding their larvae regurgitated carrion.
- Fun Fact: Their survival depends on healthy populations of small vertebrates in their habitat.
8. Rusty Patched Bumble Bee: Pollinator in Peril
With its signature rusty patch behind the head, this bee’s disappearance signals deeper trouble for the landscapes it once helped bloom. Its collapse paints a stark picture of pollinator declines worldwide.
- Pollination Power: Essential for dozens of wildflowers and agricultural crops.
- Landscape Impacts: As bees vanish, so do the fruits, seeds, and wildlife that depend on them.
9. Giant Lacewing (Polystoechotes punctata)
Giant lacewings, once widespread in North America, vanished from most regions and were believed extinct for over 50 years until their surprise discovery in Arkansas in 2012. Their long wings resemble stained-glass, but both larvae and adults are voracious predators, helping keep pests like aphids and caterpillars in check.
- Threats: Light pollution, habitat change, and accidental introduction of new predators.
- Why They Matter: Predator of pest insects, aiding natural pest control.
10. Scarab Beetles (Various Families)
Though some scarabs are celebrated in folklore, many have developed reputations as ‘creepy-crawlies’, especially the large, armor-plated dung beetles and those with ornate horns. Several scarab species—including the American burying beetle—are facing extinction.
- Threats: Habitat conversion, illegal collection, and pesticide exposure.
- Why They Matter: Decompose dung and organic matter, recycle nutrients, and maintain soil health.
Why Are So Many Bugs Endangered?
Insect populations are suffering what scientists call a “death by a thousand cuts.” Multiple stressors intertwine:
- Habitat loss: Urban sprawl, intensive agriculture, and deforestation destroy the diverse environments bugs need to thrive.
- Pollution: Pesticides, herbicides, and other toxic chemicals directly kill or hinder survival and reproduction.
- Climate change: More extreme weather, altered rainfall, and temperature patterns disrupt insect life cycles and food webs.
- Invasive species and disease: Non-native predators, parasites, and pathogens decimate populations already stressed by other factors.
- Light pollution: Artificial lighting confuses nocturnal insects, disrupting mating and feeding.
Some species can adapt—but most, especially specialists with narrow habitat requirements, are at risk. Insects now often survive in isolated habitat ‘islands,’ making it harder for their populations to recover or migrate as environments shift.
How Can You Help Protect Endangered Bugs?
- Plant native flowers and preserve native vegetation to support pollinators and their food sources.
- Reduce or eliminate pesticide and herbicide use in gardens, lawns, and landscaping.
- Protect natural habitats by supporting conservation efforts and promoting the preservation of undeveloped land.
- Leave leaf litter, logs, and other organic material in your garden to provide safe havens for insects.
- Educate others about the fascinating lives and benefits of “creepy” insects.
Common Myths About Creepy Endangered Bugs
- Myth: All bugs are pests.
Fact: The vast majority are beneficial, keeping ecosystems balanced and providing crucial services. - Myth: Bugs are dirty or dangerous.
Fact: Very few insects pose harm to humans or property; many are harmless and vital for life on Earth. - Myth: It doesn’t matter if a few bug species disappear.
Fact: Loss of even “insignificant” insect species can destabilize food webs and reduce ecosystem services for everyone.
Quick Reference: 10 Endangered Creepy Bugs
Bug | Region | Key Threat | Role in Nature |
---|---|---|---|
Lord Howe Island Stick Insect | Australia | Invasive rodents | Herbivore; plant balance |
American Burying Beetle | U.S. | Habitat loss, pesticides | Decomposition |
Rusty Patched Bumble Bee | U.S./Canada | Pesticides, disease | Pollinator |
Hawaiian Happy-Face Spider | Hawaii | Habitat destruction | Pest control |
Giant Lacewing | North America | Light pollution, predators | Natural pest control |
Scarab Beetles (select species) | Global | Pesticides, habitat loss | Decomposition; soil health |
Lord Howe Island Phasmid | Australia | Invasives, habitat loss | Herbivore |
Frequently Asked Questions (FAQs)
Q: Are endangered “creepy” bugs dangerous to people?
A: Most of these species pose no threat and are harmless to humans—many are beneficial and vital for ecosystem health.
Q: What role do insects play in our environment?
A: Insects pollinate crops, break down waste, support soil fertility, recycle nutrients, and are key food sources for countless other animals.
Q: Why are so many bugs disappearing?
A: Habitat destruction, pollution, pesticides, climate change, and invasive species are the primary causes behind the global insect decline.
Q: How can I help endangered insects in my own backyard?
A: Plant native flowers, reduce lawn chemicals, leave some natural debris, and spread awareness about insect conservation.
Q: Aren’t insect populations resilient to change?
A: Although many insects are adaptable, the speed and scale of habitat loss and climate change outpace their ability to recover. Specialists and rare species are most vulnerable.
Conclusion: Why Sparing Creepy Crawlers Matters
Every bug, from the smallest beetle to the largest stick insect, is a cornerstone of nature’s intricate web. Protecting even the most “creepy” endangered insects safeguards biodiversity, food security, and the countless life forms that depend on them—including us. The next time you spot a strange bug, think twice before stepping on it: you may be looking at one of our planet’s rarest treasures.
References
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