Species Details
Neothremma alicia
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults are flying from mid-June to mid-August.
IdentificationAntennae of the adults are dark brown. The paler scape is six times longer than the pedicel and has a long group of hyaline hairs on the mesal faces. The vertex of the head is red-brown with scattered spatulate-tipped hairs on the froms. The thorax is light yellow to red-brown. The tenth segment of the male genitalia, is a large median process that is curved postero-ventrad and tapers to a blunt point. The lateral process is almost linear, ending with a pair of v-bifid arms that narrows to a point.
Scientific Name
Neothremma alicia
Habitat
Small to large, smoothly flowing mountain streams.
Seasonality
Adults are flying from mid-June to mid-August.
Identification
Antennae of the adults are dark brown. The paler scape is six times longer than the pedicel and has a long group of hyaline hairs on the mesal faces. The vertex of the head is red-brown with scattered…
Antennae of the adults are dark brown. The paler scape is six times longer than the pedicel and has a long group of hyaline hairs on the mesal faces. The vertex of the head is red-brown with scattered spatulate-tipped hairs on the froms. The thorax is light yellow to red-brown. The tenth segment of the male genitalia, is a large median process that is curved postero-ventrad and tapers to a blunt point. The lateral process is almost linear, ending with a pair of v-bifid arms that narrows to a point.
Life History
The larvae winter for two years and pupate in clusters on the lower surfaces of rocks (Wiggins, 1996). Adults will emerge in the summer of the third year.
Conservation
Rare.
Diet Info
Larvae feed on fine organic particle; such as diatoms and algae.
Range
In North America, N. alicia is known from Alberta and British Columbia, south to Oregon, Utah and Colorado. In Alberta, they are associated with habitats that are mountainous (1350 m to 2100 m) and close to the…
In North America, N. alicia is known from Alberta and British Columbia, south to Oregon, Utah and Colorado. In Alberta, they are associated with habitats that are mountainous (1350 m to 2100 m) and close to the continental divide.
Citation
Page Citation for Neothremma alicia
Page Citation
"Species Details - Neothremma alicia, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1039. Accessed 03 Jan. 2025.
References
Author
Wiggins, Glenn B.
Title
Larvae of the North American caddisfly genera (Trichoptera)
Publication Date
1996
Pages
457
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 is 1 specimen of this Species.
UASM6444 - Neothremma alicia
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Bow River
Collected ByNimmo, A.
Date Collected1966-07-26