Genus Herrera Distant, 1905 Herrera Distant 1905b: 486. Type species. Cicada marginella Walker 1858a: 21. (Orizaba, Vera Cruz, Mexico) Remarks. Distant (1905b) distinguished species of Herrera as those cicadas with a head that is 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 postclypeus to the posterior of the cruciform elevation, male with small opercula, fore femora with distinct spines, and a fore wing width that is slightly more than half the fore wing length. The ratio of fore wing width to length can be as little as one-third in some species and the opercula can cover the tympanal ...