Perigonia ilus
Lacks solid, dark apical crescent to mid bulge, instead a diffuse, dark arc with lighter
internal scaling.
Perigonia lusca :
Fw: Dark, slightly irregular, inwardly concave, thick line runs from apex to anal angle.
Prominent, straight, dark aml outwardly shaded in dark brown more widely along inner angle, tapers toward costa.
Outer margin, oblique, almost straight.
Small black dot at base of costa midpoint, slightly larger black, short black streak in cell.
Hw yellow band very variable.
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Perigonia pallida
Similar to Perigonia stulta but generally paler, forewings narrower.
Hindwing upperside very similar to Perigonia stulta but brown border narrower and basal patch deeper yellow-orange tint.
Both species with solid, dark crescent apex to midwing bulge; pallida with less pointed apex.
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Perigonia stulta:
Crenulations of forewing outer margin are variable in degree of development, but greatly produced near midpoint.
Forewing upperside lacks distinct grey-brown or pale brown lunate patch on the outer margin.
Forewing underside submarginal line distinct at least from the apex to M2, bordered with grey distally.
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