An experience of eighteen years in collecting Coleoptera in Kansas would naturally lead to the discovery of several good collecting grounds, and to many interesting observations on the abundance of or scarcity of certain species for one or more years.

I have found my most interesting and profitable ground on the salt marshes or flats of Wilson County in South-eastern Kansas, and Republic and Mitchell Counties in North Central Kansas; in the valleys of the Verdigris River in Wilson County, of the Republic an River in Jewell County, the Smoky Hill River in Wailace County and the Arkansas River in Hamilton County; the two latter in extreme western Kansas.