Abstract
The Ecuadorean species Dichopetala andeana Hebard, 1924, is transferred to the new genus Cohnia. Cohnia g. nov. is characterized by short pronotum, subexagonal undivided elongated female subgenital plate, regularly up-curved and coarsely serrulated ovipositor, male simple cerci and presence in male of a structure titillators-like. Cohnia andeana comb. nov. is extensively illustrated and described, its song is presented for the first time as well as some ecological data.References
Braun, H. (2010) On the neotropical species described under the genus Isophya (Orthoptera, Tettigoniidae, Phaneropterinae). Zootaxa, 2444, 58–60.
Brunner, v. W.C. (1878) Monographie der Phaneropteriden. Verhandlungen der Kaiserlich Königlichen Zoologisch-Botanichen Gesellschaft in Wien, 28, 1–401, pl. 1–8.
Fontana, P. & Buzzetti, F.M. (2004) Bioageographical considerations on some Mediterranean Phaneropteridae and description of a new genus and a new species from South Africa (Orthoptera). Memorie della Società Entomologica Italiana, 82 (2), 441–468.
Hebard, M. (1924) Studies in the Dermaptera and Orthoptera of Ecuador. Proceedings of The Academy of Natural Sciences of Philadelphia, LXXVI, 109–248.
Morrone, J.J. (2006) Biogeographic areas and transition zones of Latin America and the Caribbean Islands based on Panbiogeographyc and Cladistic analyses of the entomofauna. Annual Revue of Entomology, 51, 467–494.
Nadig, A. (1980) The terminology of wing venation in the Ephippigerinae (Orthoptera: Ensifera). Mitteilungen der Schweizerischen entomologischen Gesellschaft, 53(2–3), 195–208.
Ragge, D.R. (1955) The wing-venation of the Orthoptera Saltatoria with notes on Dictyopteran wing-venation. Adlard & Son, 159 pp.
Rehn, J.A.G. & Hebard, M. (1914) A Study of the Species of the Genus Dichopetala (Orthoptera: Tettigoniidae). Proceedings of The Academy of Natural Sciences of Philadelphia, LVI, 64–160.
Rehn, J. (1955) A new Andean Katydid of the genus Dichopetala (Orthoptera: Tettigoniidae: Phaneropterinae). Notulae Naturae, 272, 1–5.
Singing Insects of North America, online version august 2010