Species Details

Syngrapha microgamma

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

Common NameSmall Gamma Looper SeasonalityAdults have been collected in Alberta from late May through July IdentificationA small (2.6-3.0 cm wingspan) grey-brown moth with bright yellow hindwings. The forewings are mottled grey-brown except for the area below the stigma between the antemedian and postmedian lines, which is solid dark reddish-black. The stigma is a thin, silver v or u-shape, with a large silver accessory spot distad. The hindwings are bright yellow with a wide black-brown terminal band. The antennae are simple and the sexes are alike. In the boreal forest region of Alberta there are no other Syngrapha species with yellow hindwings. In the mountains and foothills the small size of microgamma will separate it from all yellow-winged Syngrapha species except S. alticola and small specimens of S. ignea, both of which have different shaped stigmas. The very similar S. montana has not yet been recorded from Alberta, but may turn up in the boreal forest region. There are subtle differences between these two species, which are best separated by examining the genitalia, illustrated in the references listed below. Anarta luteola and A. macrostigma are superficially similar and occur in the same habitats, but lack a stigma on the forewings.

Scientific Name Syngrapha microgamma Common Name Small Gamma Looper Habitat Mesic coniferous forest and acid bogs, especially associated with Labrador tea (Ledum). Seasonality Adults have been collected in Alberta from late May through July Identification
A small (2.6-3.0 cm wingspan) grey-brown moth with bright yellow hindwings. The forewings are mottled grey-brown except for the area below the stigma between the antemedian and postmedian lines, which is solid dark…
A small (2.6-3.0 cm wingspan) grey-brown moth with bright yellow hindwings. The forewings are mottled grey-brown except for the area below the stigma between the antemedian and postmedian lines, which is solid dark reddish-black. The stigma is a thin, silver v or u-shape, with a large silver accessory spot distad. The hindwings are bright yellow with a wide black-brown terminal band. The antennae are simple and the sexes are alike. In the boreal forest region of Alberta there are no other Syngrapha species with yellow hindwings. In the mountains and foothills the small size of microgamma will separate it from all yellow-winged Syngrapha species except S. alticola and small specimens of S. ignea, both of which have different shaped stigmas. The very similar S. montana has not yet been recorded from Alberta, but may turn up in the boreal forest region. There are subtle differences between these two species, which are best separated by examining the genitalia, illustrated in the references listed below. Anarta luteola and A. macrostigma are superficially similar and occur in the same habitats, but lack a stigma on the forewings.
Life History Adults are both nocturnal and diurnal, and they come to light. Females in particular may be found nectaring at flowers during the day. They overwinter as third and fourth instar larvae. There is a single brood each year. Conservation A widespread but rarely encountered moth; habitat is abundant. Diet Info
No Alberta data. Elsewhere in North America the larvae are known to feed on Labrador tea (Ledum groenlandicum), leatherleaf (Cassandra calyculata) and blueberry (Vaccinium). In Europe it has also been found using…
No Alberta data. Elsewhere in North America the larvae are known to feed on Labrador tea (Ledum groenlandicum), leatherleaf (Cassandra calyculata) and blueberry (Vaccinium). In Europe it has also been found using willow (Salix).
Range
Holarctic. In Europe, from Fennoscandia and central Europe east to mountains eastern Asia. In North America it is found from central Yukon east across the subarctic to Newfoundland; south to northern New England,…
Holarctic. In Europe, from Fennoscandia and central Europe east to mountains eastern Asia. In North America it is found from central Yukon east across the subarctic to Newfoundland; south to northern New England, Michigan, Wisconsin and west across the Boreal forest to southern British Columbia; south in the mountains to Colorado. In Alberta it has been collected from the southern edge of the Boreal forest to Lake Athabasca, and throughout the foothills and lower elevations in the mountains.

Citation

Page Citation for Syngrapha microgamma

Page Citation

"Species Details - Syngrapha microgamma, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1381. Accessed 28 Jun. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Noctuoidea Family Noctuidae Subfamily Plusiinae Genus Syngrapha Species Syngrapha microgamma
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum