Black June Bug
Seasonal Insects

Black June Bug

Cotinis nitida / Euphoria inda

Quick ID Markers

1Large, robust beetle 3/4"–1" long
2Velvety dark greenish-black to bronzy iridescent body (Green June Beetle) OR matte brownish-black (Fig Beetle/Euphoria)
3Buzzing, low-flying, often erratic flight
4Active during daylight hours — unlike most June bugs
5Often found in ripening fruit or feeding on tree sap

Habits & Biology

Two common species share this name: Green June Beetle (Cotinis nitida) — metallic green with tan/orange sides, feeds on ripening fruit and tree sap; and Fig Beetle/Bumble Flower Beetle (Euphoria inda) — mottled brownish with iridescent pattern. Both are daytime fliers. Larvae are white grubs that live in soil and organic matter, often doing a distinctive back-crawling movement.

Typical Hiding Areas

Adults in ripening fruit (figs, peaches, grapes), corn, and tree sap. Larvae in compost piles, rich organic soil, and turf.

Signs of Activity

Large dark buzzing beetles in fruit trees or garden June–August
Beetles flying low over turf in morning (females searching for egg sites)
White grubs with distinctive back-crawling behavior in compost or soil
Damage to ripening fruits

🗓️ Seasonality

Adults active June–August. Most active on warm mornings. Daytime fliers (key distinction from common June Bug).

⚠️ Mistaken Identity

June Bug / Phyllophaga (brown, nocturnal, attracted to lights)Japanese Beetle (smaller, more metallic green)Bumble Bee (grubs are sometimes confused with bee nests)

🧪 Treatment Plan

Black June Beetles rarely require treatment — they are occasional nuisances. Protect ripening fruit and reduce compost-rich egg-laying sites if populations are high.

Cover ripening figs, grapes, and peaches with netting to prevent adult feeding damage.

Harvest fruit promptly when ripe — overripe fruit is especially attractive
Remove fallen fruit immediately

Recommended Products:

Garden Netting / Bird Netting Buy

Prevention After Treatment

  • •Harvest fruit promptly
  • •Keep compost in sealed bins
  • •Till garden beds annually to disrupt larval development
  • •Warm-tone exterior lighting reduces adult attraction at night
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⚠️ AI-assisted identification reviewed by a licensed applicator. Always verify critical information before acting.