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Species Details
Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityStrickland Museum collections date from May to August; Blatchley (1926) reported collections into October.
IdentificationThe species is fairly oval shaped with a brightly coloured cuticle, though coloring is apparently highly variable. The pronotum is prominently red coloured posteriorly, pale-yellow anteriorly, and has a wide, transverse black bar antero-medially. The presence of this bar distinguishes this species from the morphologically similar P. bioculatus. Perillus exaptus can also be isolated from P. bioculatus due to the presence of ventral tubercles that are not longer than their width on the fore-femora. The scutellum is mostly black with narrow, yellow lateral bands that follow its margin apically. The hemelytra are black with lateral margins, embolium, also pale yellow, and the membranous regions lacking pigmentation. Connexivum are concealed under the wings. The species is small in comparison to P. bioculatus; length between 5 and 7.5 mm (Blatchley 1926; McPherson 1982).
Scientific Name
Perillus exaptus
Habitat
This species is known from grassy marshlands, flatlands and under stones (McPherson 1982).
Seasonality
Strickland Museum collections date from May to August; Blatchley (1926) reported collections into October.
Identification
The species is fairly oval shaped with a brightly coloured cuticle, though coloring is apparently highly variable. The pronotum is prominently red coloured posteriorly, pale-yellow anteriorly, and has a wide,…
The species is fairly oval shaped with a brightly coloured cuticle, though coloring is apparently highly variable. The pronotum is prominently red coloured posteriorly, pale-yellow anteriorly, and has a wide, transverse black bar antero-medially. The presence of this bar distinguishes this species from the morphologically similar P. bioculatus. Perillus exaptus can also be isolated from P. bioculatus due to the presence of ventral tubercles that are not longer than their width on the fore-femora. The scutellum is mostly black with narrow, yellow lateral bands that follow its margin apically. The hemelytra are black with lateral margins, embolium, also pale yellow, and the membranous regions lacking pigmentation. Connexivum are concealed under the wings. The species is small in comparison to P. bioculatus; length between 5 and 7.5 mm (Blatchley 1926; McPherson 1982).
Life History
Life history is unknown.
Conservation
Blatchley (1926) reports that it is rare at all of its recorded localities.
Diet Info
The dietary information for this species is unknown. Despite the fact that it is a predatory insect, no prey species have been recorded (McPherson 1982).
Range
Collections have been recorded across Canada, from British Columbia to Newfoundland, excluding Prince Edward Island (Maw et al. 2000), and south as far as the southern limits of the United States along the Pacific…
Collections have been recorded across Canada, from British Columbia to Newfoundland, excluding Prince Edward Island (Maw et al. 2000), and south as far as the southern limits of the United States along the Pacific coastline. In the east, its southerly distribution ends in New Jersey (Henry and Froeschner 1988). In Alberta, specimens have been collected between the northern and southern limits of Edmonton and Cypress Hills Provincial Park, respectively.
Citation
Page Citation for Perillus exaptus
Page Citation
"Species Details - Perillus exaptus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6419/9-174109. Accessed 21 Jan. 2025.
References
Author
Henry, T. J., and R. C. Froeschner
Title
Catalog of the Heteroptera, or true bugs, of Canada and the Continental United States.
Publication Date
1988
Pages
958 pp.
Author
Maw, H. E. L., Footit, R. G., Hamilton, K. G. A. and Scudder, G. G. E.
Title
Checklist of the Hemiptera of Canada and Alaska
Publication Date
2000
Pages
220 p.
Author
Blatchley, W.S.
Title
Heteroptera or true bugs of Eastern North America with especial reference to the faunas of Indiana and Florida.
Publication Date
1926
Pages
1116 pp
Author
McPherson, J. E.
Title
The Pentatomoidea (Hemiptera) of Northeastern North America, with emphasis on the fauna of Illinois
Publication Date
1982
Specimen Information
There are 14 specimens of this Species.
UASM135351 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Cypress Hills Provincial Park
Collected ByJ. H. P.
Date Collected1930-07-28
UASM135352 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135353 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135354 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135355 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135356 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135357 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135358 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135359 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135360 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135361 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByKenakin, L. M.
Date Collected1964-05-17
UASM135362 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Zymoetz River
Collected ByBall, G. E.
Date Collected1958-06-11
UASM135363 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Mulhurst
Collected ByHurtig, H.
Date Collected1940-08-05
UASM135364 - Perillus exaptus
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByKenakin, L. M.
Date Collected1963-05-18