Oak Yellow Underwing
Common NameOak Yellow Underwing
Scientific NameCatocala promissa
FamilyErebidae
SubfamilyCatocalinae
Wingspan (mm)55
Primary Colorsgrey, black, orange, yellow
HabitatWoodlands, forests, parks, gardens
Geographic RangeEurope, parts of Asia
Host PlantsOak (Quercus spp.)
Flight PeriodJuly to September
Flight Styledarting
Conservation Statusleast-concern
Lifecycle NotesLarvae feed on oak leaves from May to July. Pupation occurs in a cocoon, and adults emerge from July to September, completing one generation per year.
Identification TipsIdentify by the mottled grey-brown forewings that contrast sharply with the bright yellow hindwings, which display two distinct black bands. The inner black band on the hindwing typically does not reach the inner margin.
Description
This moth features cryptically patterned forewings in shades of grey, brown, and black, providing excellent camouflage. Its hindwings are a striking bright yellow with two prominent black bands, revealed when the moth is disturbed.
