Loxosceles willianilsoni sp. n. habitat in Martins, state of Rio Grande do Norte, Brazil 66 Casa de Pedra cave 67 entrance of the cave 68–69 caatinga vegetation surrounding the cave 68 dry season 69 rainy season. Photos C. S. Fukushima.

 
 
  Part of: Fukushima CS, Andrade RMG, Bertani R (2017) Two new Brazilian species of Loxosceles Heinecken & Lowe, 1832 with remarks on amazonica and rufescens groups (Araneae, Sicariidae). ZooKeys 667: 67-94. https://doi.org/10.3897/zookeys.667.11369