First record of Ribautia Brölemann, 1909 from Argentina, with description of R. jakulicai sp. n., a new Neotropical member from the Yungas with coxal organs grouped in clusters (Myriapoda: Chilopoda: Geophilomorpha)

Author: Pereira, Luis Alberto

Source: Studies on Neotropical Fauna and Environment, Volume 42, Number 2, August 2007 , pp. 155-168(14)

Publisher: Taylor and Francis Ltd

Abstract:

Ribautia jakulicai sp. n. (Chilopoda: Geophilomorpha: Geophilidae) is here described and illustrated from specimens collected in northwestern Argentina (Salta: Orán: ca. 25 km northwest of Aguas Blancas), in the Biogeographical Province of the Yungas. The new species is characterized by having the coxal organs grouped in clusters (one of these in each coxopleuron of the last leg-bearing segment), this character being shared by three other Neotropical species of the genus, i.e. R. combinata Pereira, Uliana & Minelli, 2006, R. limaensis Kraus, 1957 and R. silvana Kraus, 1954 (all from Peru), to which it seems to be closely related, and it is accordingly compared in detail. This is the first record of the genus Ribautia from the Argentine Yungas and also the first confirmed record of the taxon for this country. Resumen Ribautia jakulicai sp. n. (Chilopoda: Geophilomorpha: Geophilidae) es aquí descripta e ilustrada en base a especímenes colectados en el noroeste de Argentina (Salta: Orán: alrededor de 25 Km al noroeste de Aguas Blancas), en la Provincia Biogeográfica de las Yungas. Esta nueva especie se caracteriza por tener los órganos coxales agrupados en forma de racimo (uno de éstos en cada coxopleura del último segmento pedal), carácter que es compartido por R. combinata Pereira, Uliana & Minelli, 2006, R. limaensis Kraus, 1957 y R. silvana Kraus, 1954 (distribuídas en Peru), con las cuales parece estrechamente relacionada, siendo aquí con éstas comparada en detalle. La nueva especie aquí descripta, representa la primera cita del género Ribautia para las Yungas de Argentina y también el primer registro confirmado del taxón para este país.

Keywords: Argentina; Chilopoda; Geophilomorpha; Neotropical Region; new species; Ribautia; Yungas Forests

Document Type: Research article

DOI: http://dx.doi.org/10.1080/01650520601102377

Affiliations: 1: National Council for Scientific and Technological Research (CONICET) and Natural Sciences Faculty and Museum, National University of La Plata, Argentina

Publication date: 2007-08-01

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