arbuti (Schwarz, 1904)

Type locality: USA, California.

Additional distribution: USA, Oregon; Canada, British Columbia.

Host plant: Arbutus menziesii .

Parasitoids: Psyllaephagus arbuticola Gahan & Waterston, Pachyneuron validum Waterston as a hyperparasitoid, and Apocharips sp., probably as a hyperparasitoid.