Common NameRound-winged WaveSeasonalityPeak flight activity is from mid June to early July.IdentificationOne of a number of geometrid species which are relatively small and havepale tan or whitish wings. As the common name suggests, the wing margins are rounded, not slightly pointed midway as in similar species of Scopula, including S. junctaria to which Idaea is superficially most similar to.
Scientific NameIdaea rotundopennataCommon Name
Round-winged Wave
Seasonality
Peak flight activity is from mid June to early July.
Identification
One of a number of geometrid species which are relatively small and havepale tan or whitish wings. As the common name suggests, the wing margins are rounded, not slightly pointed midway as in similar species of…
One of a number of geometrid species which are relatively small and havepale tan or whitish wings. As the common name suggests, the wing margins are rounded, not slightly pointed midway as in similar species of Scopula, including S. junctaria to which Idaea is superficially most similar to.
Life History
Larvae likely hibernate, and pupae are attached to vegetation without a cocoon, and supported with a silk girdle much like butterflies (Wagner et al. 2001). Adults come to lights.
Conservation
Not of concern
Diet Info
The only larval host reported in the literature is Polygonum (McGuffin 1967), but additional low-growing plants are also likely hosts.
Range
Nova Scotia to BC and the Yukon, south to Maine (McGuffin 1967).
Citation
Page Citation for Idaea rotundopennata
Page Citation
"Idaea rotundopennata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4210. Accessed 25 Jul. 2021.