Laphria fulvicauda Say, 1823: 53.
Recognition characters: Black species; length 13–20 mm; mystax black; thorax black, pleura gray pollinose, with dorsal short, sparse, black setae; bristles of thorax and scutellum black; wings grayish nearly hyaline with veins lightly margined with brown; abdomen depressed, blue-black with fine scattered white setae, conspicuous tufts of pale pile on segments 2–6, segment 2 with 2 strong black bristles laterally, segments 3–5 with 1 bristle, segments 5 to apex largely reddish above and beneath, although the sides maybe more or less blackish; legs black, pilose.
Distribution: Recorded from Wyoming by: Cannings (1994); Geller-Grimm (2018).
Habitat: Douglas fir forest and pine-douglas fir forest vegetation types.
Ethology: Nothing known.
Prey: None known.