Systematics and natural history of Uaitemuri, a new genus of the orb-weaving spider family Uloboridae (Araneae: Deinopoidea) from south-eastern Brazil Author Santos, Adalberto J. Author Gonzaga, Marcelo O. text Zoological Journal of the Linnean Society 2017 180 1 155 174 https://www.mendeley.com/catalogue/59000d78-a93b-3ac4-b93a-58f96158fb07/ journal article 10.1111/zoj.12471 0024-4082 14806806 9C7495D-95A5-4CFF-9142-F20E815CA691 UAITEMURI DEMARIAI SP . NOV . FIGURES 1 C , 5 , 12 Type material: Holotype — Male from Brazil : S ao ~ Paulo : Peru � ıbe (Estaç ao ~ Ecologica Jureia-Itatins, Guara u � , N ucleo � Arpoador; 24.27 ° S , 47.05 ° W ), 16 – 20.III.1997 , A. D. Brescovit et al. coll. ( IBSP 159756 ). Figure 11. Uaitemuri rupicola sp. nov. , egg sac: A, full view of egg sac; B – D, external silk coating, arrow indicating pore on silk coating; E, F, internal silk coating: F, detail of pore on silk coating. Additional material examined: None. Etymology: The specific name honours our first scientific advisor, Professor Mario De Maria, from the Universidade Federal de Minas Gerais , in recognition for almost four years of patient and generous guidance offered during our undergraduate studies. Remarks: Despite our extensive survey on Brazilian spider collections, we could not locate additional specimens other than the holotype . Moreover, field expeditions of A. J. Santos’s students to the type locality in 2012 and 2015 failed to collect new specimens. Despite concerns about proposing a new species from a single specimen, we decided to describe it because the differences between this species and U. rupicola are consistent with those observed among species of other uloborid genera. Additionally, we think the possibility that this could be a relatively rare and geographically restricted species makes its description even more important, as it could require official recognition for conservation purposes. Diagnosis: Males of Uaitemuri demariai can be distinguished from those of U. rupicola by a wider and untwisted embolus, a larger conductor extension and a shorter conductor process, not surpassing the apex of the cymbium ( Fig. 5A – C ). Description: Male ( Holotype ) . Carapace pale brown, darker laterally and with a darker subtriangular median spot, with three dark brown longitudinal stripes over pars cephalica. Clypeus pale brown. Chelicerae dark brown, paler apically. Endites and labium pale brown, mottled with dark brown. Palpus entirely pale brown, suffused with black. Sternum brown, with lateral dusk brown spots near legs I – III and at the posterior tip. Femur I mottled with dark brown, with a pale brown ring at the median third. Femora of remaining legs pale brown, with median and apical dark brown rings. Patellae pale brown, darker ventrally. Tibiae pale brown, darker ventrally and on the apical half. Metatarsi and tarsi pale brown. Opisthosoma pale brown, dorsally suffused with black. Sides with five transversal black stripes. Epigastric plate mottled with black, pulmonary plates pale brown. Post-epigastric area mottled with black, with six median white spots. Cribellum brown, posteriorly black and with a median black spot. Spinnerets and anal tubercle brown, suffused with black. Copulatory apparatus as in the genus description and species diagnosis. Total length 3.14. Carapace 1.22 long, 1.17 wide. Sternum 0.91 long, 0.56 wide. Leg I, length of segments: femur 2.08, patella 0.56, tibia 1.62, metatarsus 1.67, tarsus 0.81. Length of tibia II 0.71, III 0.41, IV 0.71. Opisthosoma 2.13 long.