Thereva elizabethae Holston & Irwin 2005

Thereva elizabethae Holston & Irwin Specimens examined (9). BC: Vancouver Island, Brooks Peninsula, Cape Cook Lagoon (Fig. 18). RBCM, SEM. Database and literature records (15). BC: Vancouver Island, Brooks Peninsula, Cape Cook Lagoon. CNCI, MEI, SEM. Conservation status. BC: S3S4 Distributional notes. Thereva elizabethae is known from only one location in British Columbia: the upper beach sand at Cape Cook Lagoon, Brooks Peninsula, on the northwest coast of Vancouver Island (Fig. 18). It probably occurs on other suitable beaches, at least on the south coast. Ecoprovinces and other designations. BC: Coast and Mountains. Range. Pacific Coast. Southwest British Columbia south to California along the Pacific Coast (Webb et al. 2013). Biological notes. Flight period: 2–13 August from a single site (1981). Thereva elizabethae lives on upper beaches and dunes along the Pacific coast (Holston & Irwin 2005) (Fig. 18). Suitable habitat is scattered but widespread on the British Columbia coast.