Abstract
Two new species of the genus Roquettea Mello-Leitão, 1931 (Opiliones: Cosmetidae) are described from Pará State,northern Brazil. Roquettea carajas sp. nov. has two broad swellings on mesotergal area I of male and Roquettea peba sp.nov. has a wide and high eye mound with globoid eyeballs and the closest structure to a chelate pedipalpus in Laniatoresso far described. Both species have greatly thickened conic apophyses on mesotergal area III. A key is given to the (now)6 species of Roquettea. The described diversity of genus Roquettea increased from only one species to six in only a few years, mostly known from only a few specimens, suggesting a high degree of undersampling of those rare cosmetids.References
Ferreira, C.P. & Kury, A.B. (2010) A review of Roquettea, with description of three new Brazilian species and notes on Gryne (Opiliones, Cosmetidae, Discosomaticinae). Zoological Science, 27, 697–708.
Kury, A.B. (2003) Annotated catalogue of the Laniatores of the New World (Arachnida, Opiliones). Revista Ibérica de Aracnología, vol. especial monográfico, 1, 1–337.
Kury, A.B. & Orrico, V.G.D. (2006) A new species of Lacronia Strand, 1942 from the highlands of Rio de Janeiro (Opiliones, Gonyleptidae, Pachylinae). Revista Ibérica de Aracnologia, 13, 147–153.
Mello-Leitão, C.F. de (1931) Quatro novos Opiliões. Boletim do Museu Nacional, 7(2), 115–118, 1 pl.
Mello-Leitão, C.F. de (1933) Notas sobre os opiliões do Brasil descritos na obra póstuma de Sörensen: "Descriptiones Laniatorum". Boletim do Museu Nacional, 9(1), 99–114.
Sørensen, W.E. (1932) Descriptiones Laniatorum (Arachnidorum Opilionum Subordinis). Opus posthumum recognovit et edidit Kai L. Henriksen. Det Kongelige Danske Videnskabernes Selskabs skrifter, Naturvidenskabelig og Mathematisk Afdeling, (9) 3(4), 197–422.
WWF [World Wildlife Fund or World Wide Fund for Nature] (2012) Terrestrial Ecoregions – A New Map of Life on Earth. Accessed in March 2012. Online at: http://www.worldwildlife.org/science/ecoregions/item1267.html