The ALYDINÆ OF THE UNITED STATES

The family Coreidyæ consists of five subfamilies, two of which, the Merocorinæ and Pseudophlœinæ, are very small. The larger divisions, often ranked as families themselves, are: Corizinæ charaeterized by a mesal constriction of the fourth dorsal abdominal segment and the obsolescence of the scent-gland orifices; Alydinæ, distinguished by the wide head and unusually small buceulæ; and Coreinæ, which, together with the smaller groups named above, includes the rather diverse remaining members of the family.