Insects Active at night

Say's Burying Beetle

Nicrophorus sayi

iNaturalist Wikipedia

The Say's Burying Beetle is a striking, orange-spotted marvel of the forest floor, known for its incredible parental instincts and its vital role as nature's clean-up crew.

0 Sightings

0 Habitats

Quick Identification

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Size

15 to 25 mm (0.6 to 1.0 inches) in length

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Colors

Glossy black base with four distinct orange-red spots on the elytra (wing covers); antennae are black with bright orange-red tips.

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Key Features

Four large orange-red spots on wing covers
Bright orange-red tips on the antennae clubs
Smooth, hairless black pronotum
Compact, robust body built for digging
Large, powerful mandibles for processing carrion

When You’ll See Them

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Activity pattern Active at night

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Peak hours 9 PM - 3 AM

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Season May-September

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Diet Primarily necrophagous (carrion-eaters) specializing in small vertebrate carcasses; they also hunt and consume fly larvae (maggots) to reduce competition for their food source.

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Habitat Prefer moist deciduous forests and mixed woodlands, but also thrive in suburban gardens with thick leaf litter and forest edges.

public Geographic range

Where Does the Say's Burying Beetle Live?

Say’s Burying Beetle is a quintessential North American species, primarily found throughout the eastern and midwestern United States and southeastern Canada. Its territory reaches from the maritime provinces of Canada down through the Appalachian corridor and across the Great Lakes region into the Great Plains. While they favor the humid, leaf-strewn floors of temperate forests, they are frequently discovered in well-vegetated backyard habitats from New York to Minnesota and south into the Carolinas.

Basemap © OpenStreetMap contributors

2 Countries

4.2M km² Range

Least Concern Conservation

CA Canada

647

US United States

438

eco

iNaturalist / Verified observation data

1,087 observations

1,086 research grade

2 countries

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Behavior

Say's Burying Beetle is one of nature's most efficient recyclers, performing the vital role of an 'undertaker' in the ecosystem. These beetles are famous for their remarkable parental care, a trait rarely seen in the insect world. Upon locating a small carcass—such as a fallen bird or a mouse—a male and female pair will work together to excavate the soil beneath it, eventually sinking the body into the ground and stripping it of fur or feathers. They then coat the carcass in antimicrobial secretions to preserve it, creating a 'brood ball' for their future offspring.

Unlike most insects that lay eggs and leave, Say's Burying Beetle parents stay to defend the carcass from competitors like flies and other beetles. They even feed their young directly through regurgitation during the early stages of larval development. While they are primarily nocturnal, they are highly sensitive to the scent of decay and can fly several miles in a single night to locate a fresh food source. To humans, they are entirely harmless and play a crucial role in disease prevention by removing decaying matter from the environment.

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Camera Tips

Capturing Say's Burying Beetle on a trail camera requires a specialized setup because they are too small to trigger standard PIR (Passive Infrared) sensors. To see them in action, you should switch your camera to 'Time Lapse' mode with an interval of 1-5 minutes, or use a high-end camera with a 'Macro' focus capability and a high-sensitivity sensor. Position the camera on a small tripod or directly on the ground, angled toward a patch of clear soil or leaf litter about 12 inches away.

The most effective way to guarantee a sighting is to use a scent lure. A small piece of raw meat, such as chicken or fish, placed in a mesh container (to prevent raccoons or cats from stealing it) will act as a powerful attractant. Because Say's Burying Beetle is strictly nocturnal, ensure your camera has a high-quality infrared (no-glow) flash to avoid overexposing the beetle's reflective black shell, which can result in a 'white-out' image if the flash is too close.

The best time to attempt this is on warm, humid nights in early summer. If you are lucky, you might capture the beetle 'dragging' or burying the bait. For the best results, place your setup near the edge of a wooded area where the soil is soft enough for digging. Check your camera settings to ensure the minimum focus distance is respected, as these beetles are small and can easily appear as blurry blobs if they get too close to the lens.

Similar Species

Species that look similar or are commonly confused with Say's Burying Beetle.

American Burying Beetle

Much larger with a bright orange pronotum (shield behind the head), whereas Say's has a solid black pronotum.

Margined Burying Beetle

Identified by the yellow-orange hairs on the pronotum and different spot patterns on the wing covers.

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Frequently Asked Questions

Say's Burying Beetle is primarily nocturnal, meaning it is most active during the night. They usually emerge shortly after sunset and are most active between 9 PM and 3 AM, using their sensitive antennae to track the scent of carrion in the cool night air.

To attract Say's Burying Beetle, maintain a natural garden with plenty of leaf litter and soft soil. You can use a 'bait station' with a small piece of raw meat or fish secured in a mesh cage near the ground. They are also occasionally attracted to UV 'black lights' used for moth spotting.

They feed on carrion (dead animals) like small mice, shrews, or birds. However, they are also predatory; they will eat the eggs and larvae of flies (maggots) that compete with them for the carcass, ensuring their own offspring have enough food.

Yes, Say's Burying Beetle is relatively common in suburban areas, provided there are nearby woods or enough vegetation to support small wildlife. They are often found in backyards that border parks or greenbelts.

You can tell Say's Burying Beetle apart by looking at its pronotum (the shield-like plate behind the head). In Say's Burying Beetle, the pronotum is entirely black. In the endangered American Burying Beetle (Nicrophorus americanus), the pronotum is a bright, conspicuous orange.

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