Grapevine beetle
Grapevine Beetle adults live for about a month and are mostly active at night, resting quietly on grape leaves during the day.
| Where | Woodlands, vineyards and gardens |
|---|---|
| Size | 17 to 30 mm body length |
| When | May to August |
The rounded body is pale yellow to tan with three or four black spots along each wing cover and a black-marked thorax, a pattern that separates it from the smaller, metallic green Japanese Beetle it is sometimes mistaken for.
Adults feed on grape leaves and fly to lights at night, while larvae spend up to two years feeding inside rotting logs and stumps in woods and vineyards before pupating underground.
Traits
Habitat
Woodland
Colour
Yellow, Brown, Black
Active
Night
To people
Harmless to people; adults feed on grape leaves but cause little noticeable damage to the vines.
Activity through the year
Often confused with
Much smaller at about 10 to 15 mm with a metallic green body and coppery-brown wing covers, unlike the larger, cream-yellow, black-spotted Grapevine Beetle.
Questions
Is the Grapevine beetle dangerous to people?
Harmless to people; adults feed on grape leaves but cause little noticeable damage to the vines.
When can you see the Grapevine beetle?
The Grapevine beetle can be seen from May to August, at night.
Plate retouched from a photo by kenkneidel, CC0, iNaturalist Licence
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Last updated 2026-09-26. Every entry is checked against published sources.