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The tibiæ are usually all spinose, the eyes naked, the body untufted, the form normal, the male antennæ of various structure, pectinated, brushlike simple. The European species are refered by Lederer all to one genus,Agrotisor Hübner. Nervertheless, I think the yellow-winged forms may well be separated underHiriaandTryphœna. Of these yellow-winged forms, with flattened abdomen, we have only oneT.Chardinyi, from Anticosti and Maine, considered identical with the Siberian species of the samedoi:10.4039/ent21188-10 fatcat:rqujxkllwnbe5k7hqbpx36c55m