A new species of Benthana (Crustacea: Isopoda: Philosciidae) from southern Brazil

Abstract

A new species of Benthana Budde-Lund, 1908 is described from southern Brazil. Benthana cairensis sp. nov. is distinguished from the other species in the genus by having 17 aesthetascs on the antennula and the elongated male pleopod 1 exopod with a lobe on the inner lateral margin and up to six setae on the outer lateral margin. The new species most resembles B. olfersii (Brandt, 1833), but may be distinguished by lacking the lobe with six setae on the internal margin of the proximal extremity of the merus of pereiopod 7. Furthermore, we include B. olfersii in the subgenus Benthanoscia based on the examined material as described herein.

New species and new records of Benthana Budde-Lund, 1908 (Isopoda: Oniscidea: Philosciidae) from southern Brazil

“…Remarks: Benthana cairensis has previously recorded from Taquara (29°39'02"S, 50°46'50"W) and Sapiranga (29°37'52"S, 51°00'34"W), state of Rio Grande do Sul, southern Brazil (Sokolowicz et al, 2008). The present record from the states of Paraná and Santa Catarina indicates a wide distribution for this species.…”

“…The present record indicates that the species' natural range extends southwards. Araujo & Boelter, 2008, Benthana longicornis Verhoeff, 1941, Benthana moreirai Lemos de Castro, 1985, Benthana picta (Brandt, 1833, Benthana serrana Araujo & Lopes, 2003, e Benthana taeniata Araujo & Buckup, 1994.…”

“…The genus Benthana Budde-Lund, 1908 includes 25 species: 22 recorded from Brazil, one (Benthana picta (Brandt, 1833)) from Brazil and Paraguay, and two dubious species from Chile (B. angustata (Nicolet, 1849) and B. bilineata (Nicolet, 1849)) (Andersson 1960;Schmalfuss 2003;Leistikow & Araujo, 2006;Sokolowicz et al, 2008;Campos-Filho & Araujo, 2011;Campos-Filho et al, 2013). In southern Brazil eight species of Benthana are recorded: B. araucariana Araujo & Lopes, 2003, B. guayanas Campos-Filho, Costa & Araujo, 2013, B. itaipuensis Campos-Filho & Araujo, 2011, B. longicornis Verhoeff, 1941, B. serrana Araujo & Lopes, 2003, B. taeniata Araujo & Buckup, 1994 trinodulata Araujo & Lopes, 2003 and B. picta (Brandt, 1833).…”

Taxonomic revision of Brasiloniscus (Oniscidea, Pudeoniscidae) with description of a new species

“…In the last years, our knowledge of the diversity of terrestrial isopods from Brazil has increased considerably and, to date, ca 200 species are known, including species from the subterranean environment (Schmalfuss 2003;Araujo & Quadros 2005;Souza et al 2006Souza et al , 2010Souza et al , 2011Souza et al , 2015Araujo & Taiti 2007;Sokolowicz et al 2008;Campos-Filho & Araujo 2011a, 2011bCampos-Filho et al 2012, 2013a, 2013b, 2015a, 2015b, 2016, 2017a, 2017b, 2017cCosta et al 2014;Zimmermann et al 2015;Cardoso et al 2016).…”

Two new species ofBenthanaBudde-Lund, 1908 (Crustacea: Isopoda: Philosciidae) from Brazil

“…The genus Benthana Budde-Lund, 1908 includes 21 species (two dubious species from Chile excluded) (Schmalfuss 2003;Leistikow and Araujo 2006;Sokolowicz et al 2008;Campos-Filho and Araujo 2011). All species are recorded from Brazil, and only one, Benthana picta (Brandt, 1833), is also found in Paraguay (Andersson 1960;Araujo et al 1996;Schmalfuss 2003).…”