Thereva fucatoides Bromley, 1937

Thereva fucatoides Bromley View in CoL

Specimens examined (5). BC: Robson. SEM.

Database and literature records (169). BC: Comox Lake; Courtenay, Udina Bay; Departure Bay; Diamond Head; Lillooet; Merritt; Nakusp, 23 km N; Nicola; Oliver; Oyama; Penticton; Robson; Salmon Arm; Savary Island, Summerland, Fish Lake; Trinity Valley, Victoria. CNCI, SEM.

Conservation status. BC: S5

Distributional notes. Thereva fucatoides is common over much of southern British Columbia from Vancouver Island (Courtenay, Departure Bay), east through the Nicola (Merritt) and Okanagan (Oyama, Summerland) valleys to the West Kootenay (Nakusp, Robson), and north to the Thompson and Fraser watersheds (Salmon Arm, Lillooet).

Ecoprovinces and other designations. BC: Georgia Depression, Coast and Mountains, Southern Interior, Southern Interior Mountains.

Range. Cordilleran. British Columbia and Montana south to California, Utah, Colorado ( Webb et al. 2013).

Biological notes. Flight period: 10 May–7 October. The species is a relatively late flier; of 174 specimens, only seven were recorded before August. In the United States, T. fucatoides is reported mostly in forest or steppe habitats, mostly in the Coast and Cascade / Sierra ranges. This is one of the most commonly collected therevids in the Nearctic ( Holston & Irwin 2005) .