Common Green June Beetle (Cotinis nitida) lives in eastern woodlands across Eastern United States. It feeds on fruits and vegetation.
Fascinating facts about the Common Green June Beetle
- The larvae of the green June beetle move through soil faster than any other scarab genus in the United States, a speed comparable to that of the hairy caterpillar. They grow to about 40 mm, are white with a brownish-black head and have stiff bristles on the abdomen that aid movement. Unusually, they travel on their backs as they tunnel underground.
- After mating, a female green June beetle deposits between 60 and 75 eggs beneath the soil, completing this clutch over a two-week span. The freshly laid eggs are white and elliptical, gradually becoming more spherical as the embryos develop. They remain in the ground for about 18 days before hatching into small, white grubs. These early larvae then begin the rapid underground growth that characterises the species.
- Blue jays attack green June beetles by either swallowing them straight away or repeatedly slamming them into the ground before feeding. This brutal handling is a noted hunting tactic that often results in the beetle's quick death. The birds may also immediately consume the beetle after the first slam. Such predation contributes to the beetle's vulnerability in lawns where taller grasses provide less protection.
- The green June beetle finishes its entire development within a single year, moving from egg through larva and pupa to the adult beetle. After the larval stage, which endures almost nine months, the insect forms a white pupa that later turns greenish before emerging. The pupal period lasts about 18 days, after which adults emerge in June. This tight annual schedule means every generation completes its life cycle before the next summer.
- Mating between green June beetles is extremely brief, lasting only a few minutes before the female withdraws to a burrow or hides under matted grass. Males locate females by a strongly scented milky fluid the females secrete, which draws them in during the early morning. This rapid encounter is followed by the female's egg-laying phase, where she deposits dozens of eggs underground over two weeks.
Sources
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At a glance
RangeEastern United States
HabitatEastern woodlands
DietFruits and vegetation
About the Common Green June Beetle
In the warm, languid air of summer, the Common Green June Beetle moves with a languorous grace, its iridescent elytra glimmering like shards of emerald as it drifts from bloom to bloom. With a gentle, fluttering beat of its wings, it navigates the lush tapestry of the natural world, feasting on ripe fruits and leaves with an insatiable appetite. As it flies, its metallic sheen catches the sunlight, sending shivers of green and gold dancing across the forest floor, a fleeting glimpse of beauty in the fleeting world of insects.
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