Species Details

Eurygaster alternata

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

SeasonalityIn Alberta, this species has been collected from June to August. Identification7.5- 9.5 mm. The genus Eurygaster is easily told from other Albertan genera by its narrow scutellum which exposes the hemylytra for its entire length. Both E. alternata and E. amerinda are similar in appearance, although E. alternata is somewhat smaller and is generally found in wetter habitats (McPherson 1982). Colour and patterning in both species can be quite variable.

Scientific Name Eurygaster alternata Habitat Prefers moist habitats. Associated with swampy areas and hedges (McPherson 1983). Seasonality In Alberta, this species has been collected from June to August. Identification
7.5- 9.5 mm. The genus Eurygaster is easily told from other Albertan genera by its narrow scutellum which exposes the hemylytra for its entire length. Both E. alternata and E. amerinda are similar in appearance,…
7.5- 9.5 mm. The genus Eurygaster is easily told from other Albertan genera by its narrow scutellum which exposes the hemylytra for its entire length. Both E. alternata and E. amerinda are similar in appearance, although E. alternata is somewhat smaller and is generally found in wetter habitats (McPherson 1982). Colour and patterning in both species can be quite variable.
Life History This species has been preyed upon by lizards, birds, and asilid flies, and is used in nest provisioning by the astatid wasp Dryudella montana (Cresson) (McPherson 1982). Diet Info Phytophagous Range
E. alternata is found throughout the continental United States south to New Mexico and north through much of Canada, even reaching the Northwest Territories (Maw et al. 2000). Within Alberta, this species has been…
E. alternata is found throughout the continental United States south to New Mexico and north through much of Canada, even reaching the Northwest Territories (Maw et al. 2000). Within Alberta, this species has been taken near Cypress Hills (partly treed plateau, up to 4,800 feet), Medicine Hat, Lethbridge (short-grass prairie), Calgary (short and long-grass prairie), Beaverlodge (mixed northern forest and parkland), and Cochrane (foothills) (Strickland 1953).

Citation

Page Citation for Eurygaster alternata

Page Citation

"Species Details - Eurygaster alternata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2491. Accessed 09 Jun. 2023.

Authorship

Name Tatarnic, N.
Role species page author

References

Specimen Information

There are 3 specimens of this Species.

3 results plotted on map in 3 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM1282 - Eurygaster alternata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Waterton Lakes National Park, Waterton Collected ByStrickland, Edgar H. Date Collected1923-10-07

UASM1283 - Eurygaster alternata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Barnwell Collected BySalt, Reginald W. Date Collected1942-07-02

UASM1284 - Eurygaster alternata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Cypress Hills Provincial Park, Elkwater Lake

Adult Seasonal Distribution