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Species Details
Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityIn Alberta adults fly from in June and July, peaking in late June.
IdentificationGround colour varies from light to dark rust-brown, AM and PM line thin and well defined, median line diffuse. Most specimens have diffuse black spots in the forewing subterminal space. Similar to E. madusaria, which has a smooth rather than serrate forewing edge. E. johnsonaria has evenly deep serrations on the hindwing edge, obtusaria has the third notch conspicuously deeper; hindwing discal spot absent or faint in johnsonaria, well-defined in obtusaria.
Scientific Name
Euchlaena johnsonaria
Habitat
Deciduous wooded areas in the southern half of the province.
Seasonality
In Alberta adults fly from in June and July, peaking in late June.
Identification
Ground colour varies from light to dark rust-brown, AM and PM line thin and well defined, median line diffuse. Most specimens have diffuse black spots in the forewing subterminal space. Similar to E. madusaria, which…
Ground colour varies from light to dark rust-brown, AM and PM line thin and well defined, median line diffuse. Most specimens have diffuse black spots in the forewing subterminal space. Similar to E. madusaria, which has a smooth rather than serrate forewing edge. E. johnsonaria has evenly deep serrations on the hindwing edge, obtusaria has the third notch conspicuously deeper; hindwing discal spot absent or faint in johnsonaria, well-defined in obtusaria.
Life History
McGuffin (1981) describes the larva in detail. The adults are attracted to lights
Conservation
Not of concern.
Diet Info
Larvae are apparently generalists on deciduous trees and shrubs, including dogwood (Cornus), willow (Salix), Spiraea, Vaccinium, elm (Ulmus), ash (Fraxinus), and birch (Betula) (McGuffin 1981).
Larvae are apparently generalists on deciduous trees and shrubs, including dogwood (Cornus), willow (Salix), Spiraea, Vaccinium, elm (Ulmus), ash (Fraxinus), and birch (Betula) (McGuffin 1981).
Range
Southern coastal BC east to Nova Scotia, south to NJ, MO and OR (McGuffin 1981).
Citation
Page Citation for Euchlaena johnsonaria
Page Citation
"Species Details - Euchlaena johnsonaria, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4199/9-15926. Accessed 13 Feb. 2025.
References
Author
McGuffin, W. C.
Title
Guide to the Geometridae of Canada (Lepidoptera): II. Subfamily Ennominae. 3
Publication Date
1981
Series Title
Memoirs of the Entomological Society of Canada
Volume
117
Pages
153
Specimen Information
There are 84 specimens of this Species.
UASM7060 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Tofield
Collected BySchmidt, B. C.
Date Collected1999-06-29
UASM9877 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-07-14
UASM9878 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Red Deer
Collected ByBowman, K.
Date Collected1923-07-23
UASM9879 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1945-07-06
UASM9880 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1944-06-23
UASM9881 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1928-06-28
UASM9882 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1918-06-23
UASM9883 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1941-06-23
UASM9887 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1944-07-04
UASM9890 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1944-06-27
UASM9892 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByMackie, Donald
Date Collected1917-07-14
UASM9895 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-27
UASM9896 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-29
UASM9897 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1928-07-07
UASM9898 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-29
UASM9904 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByBowman, K.
Date Collected1922-07-03
UASM9913 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-07-14
UASM9915 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByMackie, Donald
Date Collected1924-06-02
UASM9920 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-28
UASM9921 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Date Collected1921-06-24
UASM24506 - Euchlaena johnsonaria
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Dinosaur Provincial Park
Collected ByAnweiler, G. G.
Date Collected2000-06-24