The Wing Atlas
Wedge-marked Isogona

Wedge-marked Isogona

Common NameWedge-marked Isogona
Scientific NameIsogona scindens
FamilyErebidae
SubfamilyErebinae
Wingspan (mm)28
Wing Patterncryptic
Primary Colorsbrown, grey, dark brown
HabitatDeciduous forests, woodlands, suburban areas with host trees
Geographic RangeEastern North America (e.g., eastern United States and Canada)
Host Plantsoak (Quercus spp.)
Flight PeriodMay to October (multiple broods)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLike most moths, it undergoes complete metamorphosis: egg, larva (caterpillar) feeding on host plants, pupa, and adult moth.
Identification TipsLook for the overall mottled brown and grey coloration, the prominent dark, somewhat kidney-shaped spot (reniform spot) on the forewing, and the wavy, often indistinct, transverse lines across the wings.

Description

This is a small to medium-sized moth with cryptic, mottled brown and grey-brown forewings, featuring a distinct dark reniform spot and wavy transverse lines.

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