Abstract
A new species of Pheraeus Godman, 1900, P. guandu Saraiva, Carneiro, Mielke & Casagrande sp. nov., restricted to the Rio Doce Valley (Espírito Santo and Minas Gerais, southeast Brazil) is described. Adults of the new species are illustrated and compared with phenotypically closest species, Pheraeus argynnis (Plötz, 1884), together with the diagnostic characters present in the male and female genitalia. This new species is here solely described because it is known to occur in a restricted region crossed by the Rio Doce. This region has been extensively transformed in recent decades by agriculture, livestock, construction of hydroelectric and tailing dams, and more recently by a dam failure, thus potentially impacting the habitat of this species.
References
Brown, K.S. Jr. & Freitas, A.V.L. (2000) Atlantic Forest butterflies: indicators for landscape conservation. Biotropica, 32, 934–956.
https://doi.org/10.1111/j.1744-7429.2000.tb00631.x
Carneiro, E., Mielke, O.H.H. & Casagrande, M.M. (2012) Head morphology of some Neotropical Hesperiidae (Lepidoptera). Zootaxa, 3198 (1), 1–28.
https://doi.org/10.11646/zootaxa.3198.1.1
Carneiro, E., Mielke, O.H.H. & Casagrande, M.M. (2013) Thorax and abdomen morphology of some Neotropical Hesperiidae (Lepidoptera). Insecta Mundi, 2013, 1–47.
Evans, W.H. (1955) A catalogue of the American Hesperiidae: indicating the classification and nomenclature adopted in the British Museum (Natural History). Part IV. Hesperiinae and Megathyminae. British Museum (Natural History), London, v + 499 pp.
Fonseca do C, F., Kamino, L.H.Y., Tobias, R., de Campos, I.C., Fonseca do Carmo, F., Silvino, G., de Castro, K.J.S.X., Leite, M.M. & Rodrigues, N.U.A. (2017) Fundão tailings dam failures: The environment tragedy of the largest technological disaster of Brazilian mining in global context. Perspectives in Ecology and Conservation, 15, 145–151.
https://doi.org/10.1016/j.pecon.2017.06.002
Godman, F.D.C. (1900) Pheraeus [Hesperiidae]. In: Godman, F.D. & Salvin, O. (Eds.), Biologia Centrali-Americana. Insecta. Lepidoptera-Rhopalocera. Vol. 2. (1887–1901). R. H. Porter, London, pp. 578–579, pl. 101.
Li, W., Cong, Q., Shen, J., Zhang, J., Hallwachs, W., Janzen, D.H. & Grishin, N.V. (2019) Genomes of skipper butterflies reveal extensive convergence of wing patterns. Proceedings of the National Academy of Sciences, 116, 6232–6237.
https://doi.org/10.1073/pnas.1821304116
Mielke, O.H.H. (1993) Sobre os tipos de Hesperiidae (Lepidoptera) Neotropicais descritos por M. Draudt. Revista Brasileira de Entomologia, 37, 611–638.
Plötz, C. (1884) Die Hesperiinen-Gattung Apaustus Hüb. und ihre Arten. Stettiner Entomologische Zeitung, 45, 151–166.
Sahoo, R.K., Warren, A.D., Wahlberg, N., Brower, A.V.Z., Lukhtanov, V.A. & Kodandaramaiah, U. (2016) Ten genes and two topologies: an exploration of higher relationships in skipper butterflies (Hesperiidae) PeerJ, 4, e2653.
https://doi.org/10.7717/peerj.2653
Shorthouse, D.P. (2010) SimpleMappr, an online tool to produce publication-quality point maps. Available from: http://www.simplemappr.net (accessed 12 March 2020)
Steinhauser, S.R. (1981) A revision of the proteus group of the genus Urbanus Hübner (Lepidoptera: Hesperiidae). Bulletin of the Allyn Museum, 62, 1– 41.
Steinhauser, S.R. (1991) Taxonomic notes and descriptions of new taxa in the Neotropical Hesperiidae Part II, Heteropterinae and Hesperiinae, Vinius Group. Bulletin of the Allyn Museum, 132, 1–79.
Warren, A.D., Ogawa, J.R. & Brower, A.V.Z. (2008) Phylogenetic relationships of subfamilies and circumscription of tribes in the family Hesperiidae (Lepidoptera: Hesperioidea). Cladistics, 24, 642–676.
https://doi.org/10.1111/j.1096-0031.2008.00218.x