Ballooning-behavior
Guides
Rheumaptera hastata
Spear-marked Black Moth, Argent and Sable Moth
Rheumaptera hastata is a day-flying geometrid moth with distinctive black and white coloration. It is widely distributed across the Holarctic region, with well-studied populations in interior Alaska. The species is univoltine, with adults active from early June to mid-July. Larvae are external leaf feeders with strong host preferences, particularly for paper birch.