Synonyms: Cidaria gedrensis; Geometra alpestrata; Geometra inundaria; Geometra scabrata; Larentia attenuata (heterotypic); Larentia didymata (homotypic); Larentia koehni; Larentia pyrenaeata (heterotypic); Larentia trifasciata; Mesotype didymata (homotypic); Mesotype didymata didymata; Nebula scabraria; Perizoma albidissima; Perizoma atra; Perizoma bilineata; Perizoma brockenensis; Perizoma brunnescens; Perizoma contrasta; Perizoma cuneigera; Perizoma didymata didymata; Perizoma flavescens (heterotypic); Perizoma fremonti; Perizoma hetlandica; Perizoma interrupta (heterotypic); Perizoma lutescens; Perizoma nigra; Perizoma nigrofasciata (heterotypic); Perizoma ochroleucata; Perizoma palanicolor; Perizoma rebeli; Phalaena didymata (homotypic); Tephronia scabraria; Tephrosia scabraria