Insects Active during the day

Common Red Soldier Beetle

Rhagonycha fulva

iNaturalist Wikipedia

The Common Red Soldier Beetle is a bright summer icon of the backyard garden, easily identified by its orange-red body and black-tipped wings. A dual-purpose ally, it helps pollinate your flowers while preying on pesky aphids.

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Quick Identification

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Size

7–10 mm (0.28–0.39 inches) in length

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Colors

Bright orange-red body with distinctive black patches at the tips of the wing cases (elytra); legs and antennae are mostly dark or black.

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Key Features

Elongated, soft-bodied orange-red frame
Black tips on the end of the wing cases (elytra)
Long, slender black antennae
Frequent pairing behavior (often seen mating on flowers)
Fast-moving when disturbed

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 10 AM - 5 PM

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Season June-August

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Diet Omnivorous; adults consume nectar and pollen but also actively hunt aphids and other small insects. Larvae are soil-dwelling predators of slugs and snails.

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Habitat Grasslands, wildflower meadows, suburban gardens, hedgerows, and parks—anywhere with abundant flat-topped flowers.

Behavior

Common Red Soldier Beetles are highly active diurnal insects, most frequently observed during the height of summer. They are famous for their prolific mating habits, often seen in pairs stacked on top of one another on flower heads—a behavior that has led to several humorous local nicknames. Despite the intimidating 'bloodsucker' moniker, they are completely harmless to humans and do not bite or sting.

These beetles are excellent fliers and spend much of their time navigating between plants in search of food and mates. They exhibit a fascinating dual lifestyle: while they are often seen calmly consuming nectar and pollen, they are also voracious predators. They will quickly chase down and consume aphids or other small, soft-bodied insects that land on the same flower, making them a very welcome sight for gardeners looking for natural pest control.

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Camera Tips

To capture the Common Red Soldier Beetle on your backyard camera, you must focus on 'macro' setups. These beetles are small, so traditional trail camera placement at ground level will likely result in blurry or missed shots. Instead, mount your camera on a garden stake or tripod positioned just 6 to 12 inches away from 'umbellifer' flowers like Hogweed, Cow Parsley, Fennel, or Dill. These flat-topped blooms act as a natural stage where the beetles congregate to feed and mate.

Lighting is crucial for bringing out their vivid orange-red coloration. Position your camera so that the morning or afternoon sun hits the flower head from the side; this avoids harsh shadows while providing enough light for a fast shutter speed. Since these insects are most active during the warmest hours of the day, set your camera to take high-frequency bursts or short video clips between 11 AM and 4 PM. If your camera has a 'macro' mode or a focus-adjustment ring, ensure it is locked onto the center of the flower cluster.

Because these beetles move relatively slowly while feeding but can fly off in an instant, a time-lapse setting is often more effective than a motion trigger. Setting your camera to take one photo every 30 seconds over a sunny afternoon will almost certainly capture the 'hogweed bonking' behavior they are famous for. Look for garden areas that are less manicured, as the presence of tall grass and wildflowers will significantly increase the density of beetles in your camera's field of view.

Similar Species

Species that look similar or are commonly confused with Common Red Soldier Beetle.

Scarlet Lily Beetle

Much broader, rounder body that is entirely bright red without the black wing tips; usually found specifically on lily plants.

Red-headed Cardinal Beetle

Larger in size with deeply notched or 'toothed' antennae and a flatter, more matte-red body.

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Frequently Asked Questions

Common Red Soldier Beetles are strictly diurnal, meaning they are active during the day. You will see them most frequently during sunny, warm afternoons between 10 AM and 5 PM when nectar production in flowers is at its peak.

The best way to attract them is to plant 'umbellifers'—flowers with flat, umbrella-like heads—such as dill, fennel, yarrow, and Queen Anne's lace. Avoiding pesticides is also vital, as they are sensitive to chemicals and rely on a healthy population of aphids for food.

Adults have a varied diet consisting of nectar and pollen for energy, but they are also active hunters that eat aphids and other small garden pests. Their larvae live in the soil, where they provide a great service by eating slugs and snails.

Yes, they are extremely common in suburban areas. They thrive in gardens, parks, and even small window boxes, provided there are suitable flowering plants and nearby soil for their larvae to develop in over the winter.

While both are red, the Common Red Soldier Beetle has a longer, narrower body and distinctive black patches at the tips of its wings. Scarlet Lily Beetles are shorter, broader, and have entirely red wing cases with a bright, shiny texture.

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