J'ai remarqu que la tache des ailes sup rieures sur toutes celles que j'ai prises, tait tr s peu prononc e et ne s' tendait que sur une seule cellule.

Les individus de ma collection provenant des environs de Mons ont la m me tache s' tendant sur six cellules.

Les sujets re us de M. De Se1ys, provenant de Waremme, ont la tache tr s prononc e, comprenant plus de douze cellules.

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