Currant-pest
Guides
Janus integer
currant stem girdler
Janus integer, commonly known as the currant stem girdler, is a species of stem sawfly in the family Cephidae native to North America. As a member of the Cephidae, it belongs to a family of sawflies characterized by their cylindrical, elongated bodies and larvae that bore into plant stems. The common name indicates a specific association with currant plants (Ribes species), where larvae likely cause damage by girdling stems. The species has been documented across multiple Canadian provinces including Alberta, British Columbia, Manitoba, and Newfoundland.