Zygaena trifolii
Forewing Length: 27-32mm (male), 35-41mm (female)
Description
It can be difficult to separate the scarcer Five-spot Burnet from its close cousin the Narrow-bordered Five-spot Burnet. Often in the Five-spot Burnet the two spots in the middle of the wing are merged. The dark border of the upper hindwing is also broader than that of Narrow-bordered Five-spot Burnet.
Flight Period
Single-brooded, June to July.
Larval Food plants
Common Bird’s-foot Trefoil.
Habitat
Rough grassland and chalk downland.
Wiltshire Status
Fairly scarce, but may be locally abundant.