Spear-marked Black Moth
Common NameSpear-marked Black Moth
Scientific NameRheumaptera hastata
FamilyGeometridae
SubfamilyLarentiinae
Wingspan (mm)30
Wing Patternspotted
Primary Colorsblack, white
HabitatWoodlands, moorlands, heaths, open forests, and bogs
Geographic RangeHolarctic, including North America (Canada and northern US), Europe, and Asia
Host Plantsbirch, willow, bog myrtle, bilberry, cranberry
Flight PeriodMay to August
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesOverwinters as an egg. Larvae hatch in spring, feed on host plants, and pupate in a cocoon among leaves or on the ground. Adults emerge in late spring to early summer.
Identification TipsEasily identified by its bold black and white checkered pattern, particularly the prominent black spear-shaped mark within the white central band of the forewing. The hindwings also share a similar pattern.
Description
A medium-sized moth with striking black and white patterned wings. The forewings feature a broad white central band with a distinctive black spear-shaped mark pointing towards the body.
