There are probably over ninety thousand different species of Beetles in the world, and first and foremost of this mighty legion stand the Cicindelidæ. Well, therefore, might they demand our attention from their high position in the Coleopterous world alone ; but they have many other claims on our consideration.

Genus Edwardsia, Neumoegen.

Head small, nearly concealed by the thorax. Clypeus oblong, toothed in front, the middle tooth much the largest. Palpi moderately long, and pilose beneath. Antennæ regular and closely pectinated. Thorax and abdomen stout, the former with the hair of patagiæ long.

EGG—Conoidal, truncated, not so broad at base as Idalia, the sides less rounded ; depressed at summit; marked vertically by about eighteen prominent, slightly wavy ribs, half of which extend from base to summit and form around the latter a serrated rim; the remainder end irregularly at two thirds to three quarters distance from base, sometimes squarely at one of the striæ, but usually curve towards and unite with the long ribs; between each pair of ribs are equi-distant transverse striæ.

I have long had upon my desk a partly completed revision of the Calliptenoid series of N. American Acridians. The task I have undertaken in the study of our fossil insects has hitherto prevented its completion ; and as it bids fair to be long delayed, the following notes are published for the assistance of students of that special group, which is remarkably developed in the United States, from whence I have about one hundred species, while Europe scarcely possesses a dozen.