Abstract
Among South American pholcid genera, Mesabolivar Gonzales-Sponga, 1998 is the largest with 94 species (World Spider Catalog 2019). Over the last two decades, most of these species were described from forest and caves (Huber 2000, 2018a; Huber 2005; Machado et al. 2007a,b,c, 2013). Besides a well-resolved taxonomy, many Mesabolivar species’ natural history is described. Such kind of information has been used both to quantify the spider diversity in caves and to hypothesize how species arrived and diversified into or around caves (Huber 2018b). Here, we describe the female of Mesabolivar guapiara (Huber 2000) for the first time, illustrating the diagnostic features of both sexes and new distributional data are provided from caves and their surroundings.
References
Huber, B.A. (2000) New World pholcid spiders (Araneae: Pholcidae): A revision at generic level. Bulletin of the American Museum of Natural History, 254, 1–348.
https://doi.org/10.1206/0003-0090(2000)254<0001:NWPSAP>2.0.CO;2
Huber, B.A. (2005) Revision and cladistic analysis of the spider genus Carapoia Gonzáles-Sponga (Araneae, Pholcidae), with descriptions of new species from Brazil’s Atlantic Forest. Invertebrate Systematics, 19, 541–546.
https://doi.org/10.1071/IS05038
Huber, B.A. (2018a) The South American spider genera Mesabolivar and Carapoia (Araneae, Pholcidae): new species and a framework for redrawing generic limits. Zootaxa, 4395 (1), 1–178.
https://doi.org/10.11646/zootaxa.4395.1.1
Huber, B.A. (2018b) Cave-dwelling pholcid spiders (Araneae, Pholcidae): a review. Subterranean Biology, 26, 1–18.
https://doi.org/10.3897/subtbiol.26.26430
Huber, B.A., Brescovit, A.D. & Rheims, C.A. (2005) Exaggerated female genitalia in two new spider species (Araneae: Pholcidae), with comments on genital evolution by female choice versus antagonistic coevolution. Insect Systematics & Evolution, 36 (3), 285–292.
https://doi.org/10.1163/187631205788838375
Machado, E.O., Brescovit, A.D., Candiani, D.F. & Huber, B.A. (2007a) Three new species of Mesabolivar (Aranea, Pholcidae) from leaf litter in urban environments in the city of São Paulo, São Paulo. Iheringia. Série Zoologia, 97 (2), 168–176.
https://doi.org/10.1590/S0073-47212007000200006
Machado, E.O., Brescovit, A.D. & Francisco, R.C. (2007b) Three new ground dweller Mesabolivar González-Sponga, 1998 (Araneae: Pholcidae) from Blumenau, Santa Catarina, Brazil. Zootaxa, 1560 (1), 55–61.
https://doi.org/10.11646/zootaxa.1560.1.5
Machado, E.O., Yamamoto, F.U., Brescovit, A.D. & Huber, A. (2007c). Three new ground living pholcid species (Araneae: Pholcidae) from Parque Estadual da Cantareira, São Paulo, São Paulo, Brazil. Zootaxa, 1582 (1), 27–37.
https://doi.org/10.11646/zootaxa.1582.1.3
Machado, E.O., Laborda, A., Simó, M. & Brescovit, A.D. (2013) Contributions to the taxonomy and distribution of the genus Mesabolivar in southern South America (Araneae: Pholcidae). Zootaxa, 3682 (3), 401–411.
https://doi.org/10.11646/zootaxa.3682.3.1
WSC [WORLD SPIDER CATALOG] (2019) World Spider Catalog. Version 20.0. Natural History Museum of Bern, Bern. Available from: http://wsc.nmbe.ch (accessed 27 April 2019)