Not furry either, still lovely.
Blue Death Feigning Beetle
Asbolus verrucosus
Also called Desert ironclad beetle, BDFB
From Dry, sandy deserts of the south-western United States (southern California to Utah and New Mexico) and north-western Mexico, including the Sonoran and Mojave Deserts.12
At a glance the quick version
Looks how to spot one
Hard, bumpy exoskeleton with a waxy coating
A tough, flightless desert beetle with warty bumps on its wing cases. A powdery wax layer gives it a soft blue tone and helps it hold on to moisture; males have reddish bristles on the antennae.12
Personality what they are like
Calm and harmless. When worried it flips onto its back and plays dead, staying still until the coast is clear.12
Daily activity how busy a day looks
Most active around dawn and dusk; likes to dig and roam over sand. It cannot climb smooth walls.1
Grooming and care the hands-on bits
No grooming. Keep the setup dry and low in humidity, and remove leftover fresh food before it spoils.1
Home where they are happiest
A dry, low-humidity tank with sandy substrate and hiding spots, imitating a desert floor.12
Food basics what goes in the bowl
An omnivorous scavenger: dried leaves and plant matter, seeds, fruit and vegetables, plus a little protein such as dried shrimp or pet food.12
Company who they like around
Does well in groups and can be kept communally with other desert species.1
The story where it all began
Named in 1851 by the American entomologist John LeConte. It has become popular with hobbyists and zoos, and the Cincinnati Zoo achieved a celebrated captive breeding in 2018 after several years of trying.1
Fun facts for the dinner table
- 1
Its blue colour comes from wax it produces, which protects it from drying out and overheating.2
- 2
The name verrucosus means 'warty', after the bumps on its back.1
- 3
It can live for up to 8 years, a long life for a beetle.2
- 4
In 2015 it became the first darkling beetle in its subfamily to have its full mitochondrial genome sequenced.1
Recognised by the official bits
- Taxonomy (via Wikipedia)
- A darkling beetle (family Tenebrionidae) named by John Lawrence LeConte in 1851.1
The care rhythm Furry Diary remembers it for you
A typical home-care rhythm for a Blue Death Feigning Beetle. It is our own starting plan, not a vet's advice, and you can change every line in the app.
- Humidity checkevery 2 days
- Water dishevery 2 days
- FeedingDepends on species, size and moult stagevaries
- Spot cleanRemove leftover foodevery week
- Moult noteLeave them in peace while moulting and note it in the diaryvaries
- Substrate changeevery 6 months
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Where this comes from
Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at [email protected] and we will fix it.
- Asbolus verrucosus - Wikipedia en.wikipedia.orgused for range, size, appearance, behaviour, diet, care, history, fun facts
- Blue Death Feigning Beetle - Cincinnati Zoo & Botanical Garden cincinnatizoo.orgused for lifespan, colour, diet, behaviour
Checked 2026-09-30. Text is written in our own words from these sources.