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Issue: Vol. 5330 No. 3: 16 Aug. 2023
Type: Article
Published: 2023-08-16
DOI: 10.11646/zootaxa.5330.3.3
Page range: 375-397
Abstract views: 265
PDF downloaded: 20

Adaptive shifts in Neotropical planthoppers: new troglobitic species and the first surface species of Ferricixius Hoch & Ferreira, 2012 (Hemiptera: Fulgoromorpha: Cixiidae) from Brazilian caves

Centro de Estudos em Biologia Subterrânea; Departamento de Ecologia e Conservação; Instituto de Ciências Naturais; Universidade Federal de Lavras; MG. CEP 37200-900; Brazil; Programa de Pós-graduação em Ecologia Aplicada (PPGECO); Universidade Federal de Lavras
Museum für Naturkunde; Leibniz Institute for Evolution and Biodiversity Science; Humboldt-University; Invalidenstr. 43; D-10115 Berlin; Germany
Gerência de Espeleologia e Licenciamento Ambiental - Vale S.A; Nova Lima; Minas Gerais; CEP: 34.006-200; Brazil
Gerência de Espeleologia e Licenciamento Ambiental - Vale S.A; Nova Lima; Minas Gerais; CEP: 34.006-200; Brazil
Centro de Estudos em Biologia Subterrânea; Departamento de Ecologia e Conservação; Instituto de Ciências Naturais; Universidade Federal de Lavras; MG. CEP 37200-900; Brazil; Programa de Pós-graduação em Ecologia Aplicada (PPGECO); Universidade Federal de Lavras
Hemiptera Cave planthopper taxonomy adaptive shifts Brazil iron quadrangle Bambuí karst

Abstract

Here we describe three cixiid species new to science which we assign to the hitherto monotypic genus Ferricixius Hoch & Ferreira, 2012 from Brazil. Ferricixius michaeli sp. nov. and F. goliathi sp. nov. of the new species are—like the type species Ferricixius davidi Hoch &Ferreira, 2012—obligately cavernicolous and display varying degrees of troglomorphy, such as the reduction of compound eyes, wings, and bodily pigmentation, while F. urieli sp. nov. displays well developed compound eyes and wings, and—although so far only found inside caves—is ecologically classified as either epigean, or subtroglophile. We provide a modified diagnosis for the genus and an identification key to the species of Ferricixius, as well as information on the distribution, ecology, and habitat of the three new species herein described. Evolutionary implications are discussed, and adaptive shifts from epigean to subterranean habitat are presumed to be the most likely scenario underlying the evolution of cave dwelling Ferricixius.

 

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