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Species Details

Protoboarmia porcelaria

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

Common NamePorcelain Gray SeasonalityThe peak flight season is late June to early July. IdentificationA mottled grey geometer with the usual AM and PM lines. The wing pattern is very similar to that of Ectropis crepuscularia, but the subterminal dark patch opposite the forewing discal cell is usually less prominent or absent in porcelaria, and the male antennae of porcelaria are much more strongly pectinate.
Scientific Name Protoboarmia porcelaria Common Name Porcelain Gray Habitat Generally common in mixedwood forests. Seasonality The peak flight season is late June to early July. Identification
A mottled grey geometer with the usual AM and PM lines. The wing pattern is very similar to that of Ectropis crepuscularia, but the subterminal dark patch opposite the forewing discal cell is usually less prominent or…
A mottled grey geometer with the usual AM and PM lines. The wing pattern is very similar to that of Ectropis crepuscularia, but the subterminal dark patch opposite the forewing discal cell is usually less prominent or absent in porcelaria, and the male antennae of porcelaria are much more strongly pectinate.
Life History
The eggs are laid in large clusters at the base of conifer needles or the underside of deciduous hosts, hatching in about one week. The twig-like larva overwinters in the penultimate instar, often fully exposed on…
The eggs are laid in large clusters at the base of conifer needles or the underside of deciduous hosts, hatching in about one week. The twig-like larva overwinters in the penultimate instar, often fully exposed on branches of the host (McGuffin 1977, Wagner et al. 2001).
Conservation Not of concern. Diet Info
Larvae prefer conifers such as balsam fir (Abies), douglas-fir (Pseudotsuga), white spruce (Picea), tamarack (Larix), and western hemlock (Tsuga), but deciduous trees such as birches and poplars (Betula and Populus)…
Larvae prefer conifers such as balsam fir (Abies), douglas-fir (Pseudotsuga), white spruce (Picea), tamarack (Larix), and western hemlock (Tsuga), but deciduous trees such as birches and poplars (Betula and Populus) are also used on occasion (Prentice 1963).
Range Widely distributed, from the southern Northwest Territories to Texas and Florida (McGuffin 1977).

Citation

Page Citation for Protoboarmia porcelaria

Page Citation

"Species Details - Protoboarmia porcelaria, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4670. Accessed 03 Jul. 2025.

References

Specimen Information

There are 55 specimens of this Species.

55 results plotted on map in 17 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM7014 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Tofield Collected BySchmidt, B. C. Date Collected1999-06-24

UASM9666 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1917-07-08

UASM9677 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1919-07-11

UASM9678 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1932-06-27

UASM9682 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1919-07-05

UASM9683 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1917-07-08

UASM9685 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1917-06-29

UASM9686 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1944-06-23

UASM9687 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1942-06-14

UASM9688 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1919-06-25

UASM9689 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1917-07-06

UASM9691 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1928-06-21

UASM9693 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByMackie, Donald Date Collected1917-07-17

UASM9694 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1917-06-05

UASM9695 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1917-07-04

UASM9696 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByMackie, Donald Date Collected1915-06-01

UASM9699 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Date Collected1919-07-05

UASM9700 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1920-07-04

UASM41078 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Erskine Collected ByBird, C. D. Date Collected2001-06-14

UASM41079 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, McKenzie Crossing Collected ByBird, C. D. Date Collected2000-07-16

BIRD1807 - Protoboarmia porcelaria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Winfield Collected ByBird, C. D. Date Collected2000-07-06

Adult Seasonal Distribution