Insects Most active at dawn and dusk

Common Cockchafer

Melolontha melolontha

iNaturalist Wikipedia

Meet the 'Maybug,' a spectacular scarab beetle famous for its loud springtime buzz and impressive fan-like antennae. These clumsy giants of the insect world are a classic sign that spring has truly arrived in European gardens.

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Quick Identification

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Size

25 to 30 mm (1 to 1.2 inches) in length

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Colors

Reddish-brown wing cases (elytra), black head and thorax, and distinctive white triangular markings along the sides of the abdomen

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Key Features

Large fan-shaped antennae with 6-7 lamellae
Pointed, downward-curving pygidium (tail end)
Hairy black thorax and reddish-brown ridged wing cases

When You’ll See Them

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Activity pattern Most active at dawn and dusk

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Peak hours 8 PM - 11 PM

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Season April-June

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Diet Adults feed on the leaves of deciduous trees like oak, maple, and fruit trees; larvae eat the roots of grasses and crops.

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Habitat Deciduous woodlands, orchards, suburban gardens, and agricultural pastures.

public Geographic range

Where Does the Common Cockchafer Live?

Native to the European continent, the Common Cockchafer is widely distributed from the British Isles and France in the west, stretching across Central Europe into parts of Russia. While they are absent from the far north of Scandinavia and the southernmost parts of the Mediterranean, they are a staple of temperate European landscapes. These beetles are especially prevalent in regions with traditional agricultural mosaics and ancient deciduous forests.

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10 Countries

6.5M km² Range

Least Concern Conservation

GB United Kingdom FR France DE Germany PL Poland NL Netherlands Belgium Switzerland Austria Czech Republic Hungary

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iNaturalist / Verified observation data

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Behavior

The Common Cockchafer is most famous for its dramatic, buzzing flight during warm spring evenings, typically in May. These beetles spend the vast majority of their lives—usually three to four years—underground as larvae (known as white grubs). They emerge as adults for a brief but frantic period of several weeks to mate and feed, often seen swarming around the tops of trees at dusk.

During their adult phase, they are known for their somewhat clumsy flight patterns, often bumping into windows or outdoor lights, which has earned them nicknames like 'doodlebug' or 'maybeetle.' While they were once considered a major agricultural pest, their populations are now managed, and they are generally seen as a sign of a healthy ecosystem. They are completely harmless to humans and do not bite or sting.

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Camera Tips

Capturing the Common Cockchafer on camera requires focusing on their brief window of activity in late spring, specifically during the 'May' emergence. To get the best shots, position your camera near deciduous host trees like oak, beech, or fruit trees where adults congregate to feed. Since these beetles are highly attracted to artificial light, setting up a camera near a porch light or using a low-intensity UV light lure within the camera's field of view will almost certainly draw them in for a close-up.

Because cockchafers are relatively small compared to mammals, you'll want to use a camera with a good macro or close-focus capability. If your camera is a standard trail cam, mount it about 1 to 1.5 meters off the ground, angled slightly upward toward the tree canopy or at a nearby white wall where they might land to rest. Ensure your trigger speed is set to the fastest possible setting, as their flight is fast and erratic.

The 'blue hour'—just after sunset—is the magic time for Common Cockchafer activity. Configure your camera to record short video clips (10-15 seconds) rather than just stills; this captures their unique buzzing flight and the way they use their fan-like antennae to sense the air. If you are placing a camera in your garden, look for areas with disturbed soil or lawn edges where they may be emerging from their multi-year subterranean sleep.

Similar Species

Species that look similar or are commonly confused with Common Cockchafer.

Summer Chafer

Smaller (15-20mm) and emerges later in the year (June/July), with a much hairier appearance and simpler antennae.

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Frequently Asked Questions

Common Cockchafers are crepuscular, meaning they are most active during the twilight hours of dusk. You will typically see and hear them buzzing around trees and lights from about 30 minutes after sunset until late evening during May and June.

The best way to attract them is to plant deciduous trees like oaks or fruit trees and maintain a chemical-free lawn where their larvae can develop. At night, they are strongly attracted to artificial lights, so a simple porch light will often draw them near your observation area.

Adult Common Cockchafers eat the leaves of various deciduous trees and shrubs. The larvae, or 'white grubs,' live underground for several years and feed on the roots of grasses, herbs, and agricultural crops.

Yes, they are very common in suburban areas, especially those with mature gardens, nearby parks, or woodland edges. They are frequently found in residential areas because they are attracted to streetlights and garden illumination.

The easiest way is to look at the pygidium (the pointed tail end). In the Common Cockchafer, this tip is long and narrow, whereas in the Forest Cockchafer (Melolontha hippocastani), it is shorter and ends in a small knob-like swelling.

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