Bayana labordai, new genus and species of Nemesiidae (Araneae: Mygalomorphae) from Northern Uruguay and Southern Brazil

Abstract

A new genus and species of a mygalomorph nemesiid spider collected in a hill of Northern Uruguay and in Araucaria forest at Southern Brazil is diagnosed, described and illustrated. A remarkable characteristic of the new genus is its dense body pubescence, unusual in most Nemesiidae. Also genital and somatic characters led to differentiate it from related genera. The habitat is characterized by a tubular burrow followed by an aerial tubular portion made with silk and vegetation. The sexual behaviour is briefly described from a copula between the types, observed in the laboratory.

LSID: zoobank.org:pub: D5A6D7EA-19DD-4427-E6A41162EE4E.

Keywords:

• Nemesiidae
• Bayana
• spider-taxonomy
• new-genus
• new-species
• nemesiid-burrow

Acknowledgements

We are deeply indebt to Rafael Prezzi Indicatti (Instituto Butantan, São Paulo) for providing information about the Brazilian specimen, and for the critical reading of the manuscript. We also thank an anonymous reviewer.