Genus Herrera Distant, 1905c Herrera Distant 1905c: 486. TYPE SPECIES.— Cicada marginella Walker 1858a: 21. (Orizaba, Vera Cruz, Mexico) REMARKS.—The characters used by Distant (1905c) to distinguish species of Herrera are a head that about as wide as the mesonotum, a vertex that is longer than the frons, a pronotum that is about as long as the mesonotum, an abdomen that is about as long as the distance from the apex of the head to the posterior cruciform elevation, small male opercula, strongly spined fore femora, and a fore wing width that is slightly greater than half the fore wing length. The fore wing width can be as little as one third the length in some species and the male opercula can be relatively large in some species as...