Coranarta macrostigma

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

SeasonalityIn Alberta, from late May through late July, with later dates at higher elevations and latitudes. IdentificationA small (2.3-2.6 cm wingspan) day-flying moth with black forewings and yellow hindwings. Head, thorax and abdomen black with a few grey scales. The forewings are grey and black. Basal and subterminal areas are grey, with an overlay of scattered black scales, darker in the basal area. The median area is black with a few grey scales. Reniform spot is large, incompletely outlined with white scales and mostly filled with grey. The fringe is black with a few white scales at the veins. Hindwings are yellow with a broad black terminal band. The hindwing fringe is white, lightly checkered with dark scales at the veins, mainly on the upper half. Sexes are alike, with filiform antennae in both. The closely related C. luteola has much less grey filling in the white reniform spot and lacks the checkering on the hindwing fringe. There are also genitalic differences. See also Lasionycta leucocycla and L. secedens. Until recently placed in the genus Anarta.

Scientific Name Coranarta macrostigma Habitat Dry montane meadows and slopes, including alpine areas; old dunefields. Seasonality In Alberta, from late May through late July, with later dates at higher elevations and latitudes. Identification

A small (2.3-2.6 cm wingspan) day-flying moth with black forewings and yellow hindwings. Head, thorax and abdomen black with a few grey scales. The forewings are grey and black. Basal and subterminal areas are grey, with an overlay of scattered black scales, darker in the basal area. The median area is black with a few grey scales. Reniform spot is large, incompletely outlined with white scales and mostly filled with grey. The fringe is black with a few white scales at the veins. Hindwings are yellow with a broad black terminal band. The hindwing fringe is white, lightly checkered with dark scales at the veins, mainly on the upper half. Sexes are alike, with filiform antennae in both. The closely related C. luteola has much less grey filling in the white reniform spot and lacks the checkering on the hindwing fringe. There are also genitalic differences. See also Lasionycta leucocycla and L. secedens. Until recently placed in the genus Anarta.

Life History Adults are diurnal, and may be found nectaring at flowers in bright sunshine. There is a single brood each year. They have a fast, buzzing flight and resemble bees more than moths. The immature stages are unknown. Conservation Widespread, but local and rarely encountered; dune populations need monitoring. Diet Info

No data. Related species utilize bearberry (Arctostaphylos) and other Ericaceae as larval hostplants, and bearberry is the suspected host for macrostigma in Alberta. Adults have been collected while nectaring at…

Range Alaska, Yukon, western Northwest Territories south through BC and Alberta to Colorado. In Alberta found in the foothills and mountains, and north of Lake Athabasca.

Page Citation

"Species Details - Coranarta macrostigma, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2360. Accessed 24 Nov. 2024.

References

17 results plotted on map in 6 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM18910 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Nordegg Collected ByBowman, K. Date Collected1921-06-08

UASM24028 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Nordegg Collected ByBowman, K. Date Collected1921-06-08

UASM24029 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Nordegg Collected ByWhitehouse, F. C. Date Collected1917-07-11

UASM24030 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edgerton Collected ByAnweiler, G. G. Date Collected2002-06-02

UASM24062 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edgerton Collected ByAnweiler, G. G. Date Collected2002-06-01/2002-06-02

UASM24063 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edgerton Collected ByAnweiler, G. G. Date Collected2002-06-01/2002-06-02

UASM24064 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edgerton Collected ByAnweiler, G. G. Date Collected2002-06-01/2002-06-02

UASM41687 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edgerton Collected ByAnweiler, G. G. Date Collected2002-06-02

UASM41801 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Colin-Cornwall Lakes Wildland Park Collected ByMacaulay, D. Date Collected2002-06-06

UASM41887 - Coranarta macrostigma

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Pine Creek Collected ByWolley-Dod, Frederic H. Date Collected1915-05-11