Loxosceles deserta, GERTSCH, 1973

Magalhaes, Ivan L F, Brescovit, Antonio D & Santos, Adalberto J, 2017, Phylogeny of Sicariidae spiders (Araneae: Haplogynae), with a monograph on Neotropical Sicarius, Zoological Journal of the Linnean Society 179 (4), pp. 767-864 : 855

LOXOSCELES DESERTA GERTSCH

Material examined: USA. Arizona: Tucson, F.E. Russell , 1 # (MACN-Ar 21497), 1 $ (MACN-Ar 21498).

ACKOWLEDGEMENTS

We are deeply indebted to the curators of the institutions housing the material studied during the course of this work. We express our gratitude to all of them and to P. Marais (AcAT), N. I. Platnick and L. Sorkin ( AMNH), A. Carmichael ( CAS), F. Camp on ( CAI), N. Govender ( DNSM), C. Stoffels ( KNM), C. Grismado ( MACN), L. Leibensperger ( MCZ), A. Friederichs and J. Kapp ( ZMB), C. Barros ( MNRJ), V. S. Costa ( UFMG) and D. DeRoche ( USNM), who kindly made material from their collections available, packaged and sent specimens, and also offered their help and hospitality during visits to their institutions. We also thank several people who sent material under their care or specifically kept an eye for Sicarius in the field: A. V. Peretti, A. O. Porta, A. Taucare R � ıos, C. Calitra, H. A. Iuri, J. Ochoa, L. S. Carvalho, L. E. C. Schmidt and R. Botero-Trujillo. Many colleagues also accompanied us in the field trips: A. Taucare R � ıos, B. T. Faleiro, C. Veloso, F. M. Hughes, G. F. B. Pereira, J. Cabra, L. Piacentini and T. J. Porto. Collecting permits were kindly issued by SEMA-Bahia and ICMBio ( Brazil), Subsecretar � ıa de Ecolog � ıa de La Pampa and Secretar � ıa de Ambiente y Desarrollo Sustentable de R � ıo Negro and Administracion de Parques Nacionales ( Argentina), Direccion General Forestal y de Fauna Silvestre ( Peru), and La Corporacion Nacional Forestal – CONAF ( Chile). Mart � ın Ram � ırez and Cristian Grismado kindly helped with obtaining collecting permits for Argentina, and D. Silva helped in Peru. We thank Ricardo Pinto da Rocha and Fritz Geller Grimm for information on the status of the types of S. patagonicus and S. terrosus yurensis , respectively. Audrey Ndaba helped with locality data of some samples from the Ditsong Museum. We thank several colleagues for discussions about characters, especially M. J. Ram � ırez (who first called our attention to the presence of MAP spigots in Sicarius ), G. H. F. Azevedo, and L. N. Piacentini. SEM images were obtained with the help of F. Tricarico ( MACN) and the staff of Centro de Microscopia da UFMG, especially J. C. Ivo. Photos of live specimens and habitats were kindly provided by Daniel N. Proud, Filippo Castellucci, Garth Van Zyl, Gonzalo D. Rubio, Gracielle F. B. Pereira, Hern an � A. Iuri, Jaime Pizarro Araya, Kenneth Cramer, Pedro H. Martins and Sam Jacobsz. Kin Master Produtos Qu � ımicos kindly provided a free sample of pancreatin to A.J.S. TNT is made freely available due to the sponsorship of the Willi Hennig Society. Earlier versions of this manuscript were improved by critical readings by L. N. Piacentini, and by comments from I. Agnarsson and three anonymous reviewers. This is a contribution from Pos-Graduac ao ~ em Ecologia, Conservac ao ~ e Manejo da Vida Silvestre, UFMG. I.L.F.M. was supported by Conselho Nacional de Desenvolvimento Cient � ıfico e Tecnologico (CNPq; 132086/2011-5 and 372279/2013-9) and by a CONICET Doctoral Fellowship, and by grants PIP 2012-0943 from CONICET and PICT 2011-1007 from FONCyT; A.D.B. by CNPq (301776/2004-0) and Fundac¸ao ~ de Amparo a � Pesquisa do Estado de S ao ~ Paulo (2011/50689-0); and A.J.S. by CNPq (474680/ 2010-0, 475179/2012-9 and 308072/2012-0), Fundac¸ ~ ao de Amparo a � Pesquisa do Estado de Minas Gerais (PPM-00335-13, PPM-00651-15) and Instituto Nacional de Ciencia e Tecnologia dos Hymenoptera Parasitoides da Regi ao ~ Sudeste Brasileira (http:// www.hympar.ufscar.br/).