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Species Page - Acentria ephemerella
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scientific name    Acentria ephemerella    

common name     Water Veneer Moth

habitat
The larvae are found in permanent waterbodies where Water Milfoil and pondweeds occur. The adult males can be found up to a kilometer or so away.

seasonality
Late June to mid September.

identification
A small to medium sized whitish moth (13-18 mm wingspan) with semi-transparent wings. Forewings white to light grey, costa and veins brownish; hindwings white. Somewhat similar in appearance to small caddisflies (Trichoptera) and first described as such, rather than as a moth. The females are usually wingless. Formerly called Acentria nivea (Olivier) and referred to as such in Hodges et al. (1983). Easily distinguished as there is no other moth like it in Alberta.

life history
The larvae are subaquatic. Details of the life history are in Goater (1986) and Goater, Nuss & Speidel (2005). Adult males come to light.

conservation
Locally common.

diet info
The foodplants are Water Milfoil (Scholtens and Balogh 1996), pondweeds and other aquatic plants (Goater 1986; Goater, Nuss & Speidel 2005).

range
Originally thought to be a native species (Monroe 1947), especially as it is widespread and the females have rudimentary wings, but recent authors feel that this is an introduced European species. It was first reported in North America from Montreal in 1927 (Sheppard 1945) and by 1996 was well established in the Great Lakes area and Ohio by 1996 (Scholtens & Balogh (1996). The first Alberta collection was made in 1995 by Ernest Mengersen at Olds. Reported from numerous locations in the Aspen Parkland and Prairies of Alberta by Pohl et al. (2005) but it is also known from the southern part of the Boreal Forest.

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=6259



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Specimen Info
There are 46 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (46)
Related Links
Moth Photographers Group

 

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