The Currant Spanworm Moth (Macaria ribearia) is a native North American geometrid moth. Adult moths boast a wingspan of roughly 28 to 29 mm (1.1 inches) and feature pale yellow wings with brownish-gray markings. Its caterpillars are primarily known for feeding on Ribes species, including currants, gooseberries, and blueberries.
Key Identification & Physical Characteristics
Wingspan: 28 - 29 mmWing Coloration: The forewings are pale yellow and adorned with variable brownish-gray bands or spots. A dark patch frequently appears near the middle of the subterminal area, sometimes forming a broader band.
Adult Flight Period: In North America, adults generally fly during mid-summer (often July).
