Chlaenius pennsylvanicus

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

SeasonalityImmatures have been collected in August. Adult in Alberta have been collected from mid-May to late July. IdentificationAdults:10.4-11.9mm in length. Head and pronotum metallic green with pronotum often tinged with gold coloration. Pronotum relatively long and narrow in comparison to both C. lithophilus and C. nebraskensis. Also easily distinguished from C. lithophilus and C. nebraskensis as the head is smooth whereas the other species are punctate. Pronotal margins almost always sinuate. Legs, palpi, and antennal segments 1-3 yellow-brown to orange brown; antennal segments 4-11. Elytra with sides parallel, slightly convex; stria deep but narrow, with fine, close, inconspicuous puntures; intervals flat and densely punctate; microsculpture granular but fine and shiny in appearance; punctures are however, muricate, giving the surface a rough appearance. Pronotum with more strongly curved sides than C. nebraskensis; lateral margin red-brown to black. Adapted from Bell 1960.

Scientific Name Chlaenius pennsylvanicus Habitat Usually at the border of small standing waters but also recorded from sphagnum bogs in the U.S. Seasonality Immatures have been collected in August. Adult in Alberta have been collected from mid-May to late July. Identification

Adults:10.4-11.9mm in length. Head and pronotum metallic green with pronotum often tinged with gold coloration. Pronotum relatively long and narrow in comparison to both C. lithophilus and C. nebraskensis. Also easily distinguished from C. lithophilus and C. nebraskensis as the head is smooth whereas the other species are punctate. Pronotal margins almost always sinuate. Legs, palpi, and antennal segments 1-3 yellow-brown to orange brown; antennal segments 4-11. Elytra with sides parallel, slightly convex; stria deep but narrow, with fine, close, inconspicuous puntures; intervals flat and densely punctate; microsculpture granular but fine and shiny in appearance; punctures are however, muricate, giving the surface a rough appearance. Pronotum with more strongly curved sides than C. nebraskensis; lateral margin red-brown to black. Adapted from Bell 1960.

Life History A teneral specimen captured in Medicine Hat, Alberta in mid-August indicates hibernation in an adult state (Bell 1960). Conservation Relatively common. Diet Info Predatory, omnivorous. Range Transamerican with exception of some southwestern states. Collected from the southern portion of Alberta. Notes All specimens of this species from Canada and most of the U.S. belong to the subspecies pennsylvanicus.

Page Citation

"Species Details - Chlaenius pennsylvanicus, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6308. Accessed 18 Jan. 2025.

References

165 results plotted on map in 48 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM72972 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Little Bow River Collected ByBall, G. E. Date Collected1955-06-07

UASM72973 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Milk River Collected ByBall, G. E.; Freitag, R. Date Collected1962-05-31

UASM72974 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Medicine Hat Collected ByBall, G. E. Date Collected1956-07-21

UASM72975 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lake Newell Collected ByBall, G. E. Date Collected1960-06-08

UASM72976 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Oldman River Collected ByBall, G. E. Date Collected1956-07-23

UASM72977 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Oldman River Collected ByGetty, R.; Larsen; Whitehead, D. R. Date Collected1964-05-12

UASM72978 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Oldman River Collected ByGetty, R.; Larsen; Whitehead, D. R. Date Collected1964-05-12

UASM72979 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Oldman River Collected ByGetty, R.; Larsen; Whitehead, D. R. Date Collected1964-05-12

UASM72980 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Oldman River Collected ByGetty, R.; Larsen; Whitehead, D. R. Date Collected1964-05-12

UASM289559 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Manitoba, Winnipeg Collected ByBall, G. E. Date Collected1956-07-01

UASM289564 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Manitoba, Selkirk Collected ByBall, G. E. Date Collected1956-07-03

UASM289565 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Manitoba, Selkirk Collected ByBall, G. E. Date Collected1956-07-03

UASM289566 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Manitoba, Winnipeg Collected ByBall, G. E. Date Collected1956-07-01

UASM289567 - Chlaenius pennsylvanicus

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Saskatchewan, Cypress Hills Park Collected ByBall, G. E. Date Collected1956-07-18