Abstract
The South America Scleropactidae includes 53 nominal species distributed in 14 genera. In Brazil, there are 16 species recorded in the north and southeast regions. Here, two new species of Scleropactidae are described based on material collected in caves in the state of Pará, both troglobitic and allocated in the genus Circoniscus. Circoniscus buckupi sp. nov. can be distinguished from its congeners by the long second article of antennal flagellum, inner endite of maxillula with a small hook-like spine at the apex, a long dactylar organ with pectinate apex conferring a knife-shaped appearance and the absence of schisma in adults. Circoniscus carajasensis sp. nov. can be distinguished from Circoniscus buckupi sp. nov. by the presence of schisma on pereionite 1 in adults and dactylar organ with a fringe appearance.
Circoniscus; cave; Neotropical
- Leistikow, A. 2001. Phylogeny and biogeography of South American Crinocheta, traditionally placed in the family "Philosciidae" (Crustacea: Isopoda: Oniscidea). Organisms, Diversity & Evolution, 4(1):1-85.
- Pearse, A. 1917. Isopoda collected by the Bryant Walker Expedition to British Guiana, with notes on Crustacea from other localities. Occasional Papers of the Museum of Zoology of University of Michigan, 46:1-8.
- Schmalfuss, H. 2003. World catalog of terrestrial isopods (Isopoda: Oniscidea). Stuttgarter Beiträge zur Naturkunde, 654:1–341. Available from: http://www.oniscidea-catalog.naturkundemuseum-bw.de/Cat_terr_isop.pdf (25 August 2010).
- Schmidt, C. 2002. Contribution to the phylogenetic system of the Crinocheta (Crustacea: Isopoda). Part 1. (Olibrinidae to Scyphacidae s. str). Zoologische Reihe, 78 (2):275-352.
- Schmidt, C. 2003. Contribution to the phylogenetic system of the Crinocheta (Crustacea: Isopoda). Part 2. (Oniscoidea to Armadillidiidae). Zoologische Reihe, 79 (1):3-179.
- Schmidt, C. 2007. Revision of the Neotropical Scleropactidae (Crustacea: Oniscidea). Zoological Journal of the Linnean Society, 151(1):1-339.
- Schmidt, C. 2008. Phylogeny of terrestrial Isopoda (Oniscidea): a review. Arthropod Systematics & Phylogeny, 66(2):191-226.
- Souza, L.A. and Lemos de Castro, A. 1991. The genus Circoniscus Pearse 1917 in Brazil, with description of three new species (Isopoda Oniscidea Scleropactidae). Tropical Zoology, 4:45-64.
- Souza, L.A.; Bezerra, A.V. and Araujo, J.P. 2006. The first troglobitic species of Scleropactidae from Brazil (Crustacea, Isopoda, Oniscidea). Subterranean Biology, 4: 37-43.
- Taiti, S. 2004. Crustacea: Isopoda: Oniscidea (woodlice). p. 547-551. In: Gunn, J. (ed), Encyclopedia of caves and karst science, New York, Fitzroy Dearborn, Taylor and Francis Group.
Publication Dates
-
Publication in this collection
27 Jan 2015 -
Date of issue
June 2011
History
-
Accepted
23 July 2011 -
Received
24 Mar 2011
