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Species Details
Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults fly from late May to late August.
IdentificationAdult antennae are brown with each article annulated distally dark brown. The vertex of the head is a very dark brown. Legs are yellow with brown spurs. The lobes of segment 10 in males are without meso-dorsal processes. Clasper's distal article is indented on the distal edge (Nimmo, 1971).
Scientific Name
Rhyacophila bifila
Habitat
A large variety of mountain streams and rivers.
Seasonality
Adults fly from late May to late August.
Identification
Adult antennae are brown with each article annulated distally dark brown. The vertex of the head is a very dark brown. Legs are yellow with brown spurs. The lobes of segment 10 in males are without meso-dorsal…
Adult antennae are brown with each article annulated distally dark brown. The vertex of the head is a very dark brown. Legs are yellow with brown spurs. The lobes of segment 10 in males are without meso-dorsal processes. Clasper's distal article is indented on the distal edge (Nimmo, 1971).
Conservation
Very common.
Diet Info
Larvae are probably predacious.
Range
Extends from British Columbia and Alberta, south to California and Wyoming.
Citation
Page Citation for Rhyacophila bifila
Page Citation
"Species Details - Rhyacophila bifila, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3142/9-12790. Accessed 16 Apr. 2025.
References
Author
LaFontaine, Gary
Title
Caddisflies
Publication Date
1981
Pages
336
Author
Nimmo, A. P.
Title
The adult Rhyacophilidae and Limnephilidae (Trichoptera) of Alberta and eastern British Columbia and their post-glacial origin.
Publication Date
1971
Series Title
Quaestiones Entomologicae
Volume
7
Pages
1-234
Specimen Information
There are 31 specimens of this Species.
UASM4143 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Crowsnest River
Collected ByNimmo, A.
Date Collected1967-07-29
UASM4136 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Crowsnest River
Collected ByNimmo, A.
Date Collected1967-08-12
UASM4149 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Bow River
Collected ByNimmo, A.
Date Collected1966-07-15
UASM4153 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Bow River
Collected ByNimmo, A.
Date Collected1967-06-15
UASM4155 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Bow River
Collected ByNimmo, A.
Date Collected1967-06-15
UASM4148 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Dead Man's Flats
Collected ByNimmo, A.
Date Collected1967-07-29
UASM4137 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Dead Man's Flats
Collected ByNimmo, A.
Date Collected1967-08-06
UASM4147 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Bow River
Collected ByNimmo, A.
Date Collected1967-08-23
UASM4145 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Bow River
Collected ByNimmo, A.
Date Collected1968-08-06
UASM4158 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Saskatchewan River Crossing
Collected ByNimmo, A.
Date Collected1967-06-15
UASM4141 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Blackstone River
Collected ByNimmo, A.
Date Collected1967-07-14
UASM4134 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Fiddle River
Collected ByNimmo, A.
Date Collected1967-08-09
UASM4135 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Sheep River
Collected ByNimmo, A.
Date Collected1966-07-15
UASM4138 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Lake Louise
Collected ByNimmo, A.
Date Collected1967-07-16
UASM4139 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Bow River
Collected ByNimmo, A.
Date Collected1965-08-09
UASM4140 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Fiddle River
Collected ByNimmo, A.
Date Collected1968-07-22
UASM4142 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Bow River
Collected ByNimmo, A.
Date Collected1967-07-29
UASM4144 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Fiddle River
Collected ByNimmo, A.
Date Collected1968-08-20
UASM4146 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lundbreck Falls
Collected ByNimmo, A.
Date Collected1967-07-29
UASM4150 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Fiddle River
Collected ByNimmo, A.
Date Collected1968-07-15
UASM4151 - Rhyacophila bifila
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Highwood River
Collected ByNimmo, A.
Date Collected1965-08-13