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It is very curious and interesting to observe the waves of insect life that annually pass over this district. For instance, some four years ago the genus Acronycta was strongly represented in some ten or twelve species. The following sesson that genus almost disappeared, and its place was taken by the old genus Agrotis, with its now nutnerous subdivisions. Last year the various species of the genus Carneades were certainiy in the ascendant, and occasionally there comes a year like this, whendoi:10.4039/ent3433-2 fatcat:kblj7c4ycfd4ppm7xiyl77zzri