Species Details

Synaxis cervinaria

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

Common NameFalcate Synaxis SeasonalityIn May. IdentificationA relatively large (3.5-4.3 cm wingspan) tan, yellow-brown to orange geometrid with angular wings with falcate tips. Markings are confined to a small dark discal dot on each forewing, a narrow antemedian line crossing the forewing only and a postmedian line crossing both the fore- and hindwings. These lines are pale yellow in males, grey in females. Similar to S. juberaria, which has brown not grey cross-lines. S. pallulata has much wider dark cross-lines, usually bordered distally with white. S. cervinaria is the only spring-summer flying Synaxis in Canada; the others all fly in fall.

Scientific Name Synaxis cervinaria Common Name Falcate Synaxis Habitat Found in wooded areas. Seasonality In May. Identification
A relatively large (3.5-4.3 cm wingspan) tan, yellow-brown to orange geometrid with angular wings with falcate tips. Markings are confined to a small dark discal dot on each forewing, a narrow antemedian line crossing…
A relatively large (3.5-4.3 cm wingspan) tan, yellow-brown to orange geometrid with angular wings with falcate tips. Markings are confined to a small dark discal dot on each forewing, a narrow antemedian line crossing the forewing only and a postmedian line crossing both the fore- and hindwings. These lines are pale yellow in males, grey in females. Similar to S. juberaria, which has brown not grey cross-lines. S. pallulata has much wider dark cross-lines, usually bordered distally with white. S. cervinaria is the only spring-summer flying Synaxis in Canada; the others all fly in fall.
Life History
Adults are nocturnal, come to light and fly in spring and summer. Larvae are twig mimics and range in color from green-brown to red-orange. The larva is described by McGuffin (op. cit.) and is illustrated in color by…
Adults are nocturnal, come to light and fly in spring and summer. Larvae are twig mimics and range in color from green-brown to red-orange. The larva is described by McGuffin (op. cit.) and is illustrated in color by Miller and Hammond (op. cit).
Conservation
There is a single recent (2006) specimen record from Waterton Lakes National Park in May. Valenti et al (op. cit) determined that populations on manzanita in northern California were maintained at very low levels by…
There is a single recent (2006) specimen record from Waterton Lakes National Park in May. Valenti et al (op. cit) determined that populations on manzanita in northern California were maintained at very low levels by the combined efforts of pathogens and predators, which together reduced the population by about 99%.
Diet Info
Reported larval hosts include a wide variety of deciduous trees and shrubs, including Ceanothus, willow, cascara, oak, poplar, cherry, manzanita and arbutus (McGuffin, 1987; Miller and Hammond, 2003; Valenti et al, 1998.).
Reported larval hosts include a wide variety of deciduous trees and shrubs, including Ceanothus, willow, cascara, oak, poplar, cherry, manzanita and arbutus (McGuffin, 1987; Miller and Hammond, 2003; Valenti et al, 1998.).
Range Western; from southern BC and extreme southwestern AB south to CA. Notes
Synaxis cervinaria has a more southern distribution in Canada than does either S. jubararia and pallulata, and in spite of being a generalist on deciduous trees and shrubs, was apparently not detected by the FIDS surveys.
Synaxis cervinaria has a more southern distribution in Canada than does either S. jubararia and pallulata, and in spite of being a generalist on deciduous trees and shrubs, was apparently not detected by the FIDS surveys.

Citation

Page Citation for Synaxis cervinaria

Page Citation

"Species Details - Synaxis cervinaria, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6202. Accessed 29 Jun. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Geometroidea Family Geometridae Subfamily Ennominae Tribe Ourapterygini Genus Synaxis Species Synaxis cervinaria
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