Big Sand Tiger Beetle
ExploreInsects
Big Sand Tiger Beetle
cicindela formosa
The Big Sand Tiger Beetle is an iconic, highly active predatory insect known for its blinding speed and striking, metallic coloration. Commonly found darting across open, sunny patches of dry sand, this beetle is a ferocious visual hunter that preys on a wide variety of small arthropods. Both as highly mobile adults and as sit-and-wait burrowing larvae, they are exceptionally adapted to some of the harshest, most heat-exposed sandy environments in North America. These beetles play a critical role as top invertebrate predators in fragile dune ecosystems, keeping populations of smaller insects in check. Spotting one is always an exciting challenge, as their incredible reflexes and rapid flight make them highly elusive to nature enthusiasts. If you want to identify Big Sand Tiger Beetle in the wild, use the Snappit app.
Habitat: Typically found in open, dry sandy areas such as sand dunes, blowouts, sandy roadsides, and pine barrens.
Appearance
Adults typically measure between 1.5 to 1.9 cm in length and exhibit a robust, slightly flattened body. They are characterized by a brilliant metallic bronze, copper, or deep purple-red dorsal color, adorned with bold, creamy-white markings along the margins of their elytra. They possess large, prominent compound eyes that afford them excellent vision, and massive, overlapping sickle-shaped mandibles used to seize prey. Their long, slender legs are built for rapid running, often appearing iridescent green or blue under direct sunlight.
KingdomAnimaliaPhylumArthropodaClassInsectaOrderColeopteraFamilyCicindelidaeGenusCicindela
Category
InsectsRarity
Common
Danger
1/5 · Very low
Snaps
Be the first to snap!
Interesting facts
During their high-speed sprints, they run so fast that their photoreceptors cannot gather enough light, forcing them to stop momentarily to locate their prey again.
The larvae have a pair of specialized hooks on the back of their fifth abdominal segment that anchors them into their vertical burrows, preventing them from being dragged out by larger prey.
To survive the extreme heat of mid-day sand, they engage in 'stilting,' standing tall on their long legs to keep their bodies in the cooler air stream above the hot ground.
Special abilities
Ability
Blinding Sprint
Runs at such high speeds that its eyes cannot process light fast enough, causing temporary blindness during the chase.
Ability
Larval Anchor
Larvae possess specialized hooks on their abdomen to anchor themselves in their sand burrows, preventing large prey from pulling them out.
Ability
Thermoregulatory Stilting
Adults can stand high on their long legs to elevate their bodies above the scorching hot sand surface to prevent overheating.
Measurements & details
- Length
- 1+ cm
- Wingspan
- 3+ cm
- Weight
- 0.0001+ kg
- Lifespan
- 2+ years
- Top Speed
- 9 km/h
- Clutch Size
- 20+
- Incubation
- 10+ days
Diet & Feeding
Both adults and larvae are opportunistic carnivores that feed primarily on smaller ground-dwelling insects, spiders, and ants.
Primary Foods
- Ants
- Spiders
- Small Caterpillars
- Flies
Foraging Method
- Pursuit
Ecological connections
parasite
Bee Fly
Anthrax georgicus
Larvae are heavily parasitized by the larvae of bee flies, which find the tiger beetle burrows and lay eggs near them.
hunts
Allegheny Mound Ant
Formica exsectoides
Adults hunt and consume various species of ants running across the sand.
eaten by
Red-footed Cannibal Fly
Promachus rufipes
Preyed upon by large robber flies that intercept the beetles during short flights.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
Collections
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Big Sand Tiger Beetle?
The easiest way to identify Big Sand Tiger Beetle is to use the Snappit nature identifier app.
How long is Big Sand Tiger Beetle?
1+ cm
What is Big Sand Tiger Beetle's wingspan?
3+ cm
How much does Big Sand Tiger Beetle weigh?
0.0001+ kg
How long does Big Sand Tiger Beetle live?
2+ years
How fast can Big Sand Tiger Beetle move?
9 km/h
What does Big Sand Tiger Beetle eat?
Both adults and larvae are opportunistic carnivores that feed primarily on smaller ground-dwelling insects, spiders, and ants.
Where is Big Sand Tiger Beetle usually found?
Typically found in open, dry sandy areas such as sand dunes, blowouts, sandy roadsides, and pine barrens.
Snap Map
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Recent Snaps
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Where to spot
Park30 sightings12 species
North Dakota, US
Denbigh Experimental Forest
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Connecticut, US
Hartford Golf Club Historic District
You might spot Common Eastern Bumble Bee and Red-Tailed Hawk.
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Park29 sightings12 species
Alabama, US
Main–Yankee Street Historic District
You might spot Eastern Newt, Six-Lined Racerunner, and Giant Floater.
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Park30 sightings12 species
Nebraska, US
Sioux County Courthouse
You might spot Nine-Spotted Lady Beetle and Convergent Lady Beetle.
View guide →
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