Pachyschelus Solier 1833:313

Hespenheide, Henry A., 2003, A Reconsideration of Pachyschelus schwarzi Kerremans and a Review of American Pachyschelus North of MÉxico (Coleoptera: Buprestidae), The Coleopterists Bulletin 57 (4), pp. 459-468 : 459

Pachyschelus Solier 1833:313 .

Metonius Say 1839:164 .

This large genus of leaf-mining beetles has a primarily Pantropical distribution, although most species are Neotropical; for example, 38 species have been collected at La Selva Biological Station in Costa Rica (Hespenheide unpubl.). Members of the genus are flattened, rhomboidal in shape, and usually less than 3 mm in length. Among the genera of North American leaf-mining buprestids they can be distinguished from Brachys , Taphrocerus and Leiopleura by their broad, flattened tibiae, large triangular scutellum, and by having the mandibles hidden beneath the anterior margin of the prosternum. Sexes differ in the form of the terminal visible ventral abdominal sternum: males have an acute and setose medial projection, females have 6 or 8 downturned teeth usually more or less divided by a medial emargination.

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