Glenognatha caaguara Cabra-García & Brescovit, 2016, new species
Creators: name: Jimmy Cabra-García
name: Antonio D. Brescovit
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Tetragnathidae
Glenognatha
Glenognatha caaguara

description: Glenognatha caaguara new species
(Figs. 71–74, 133)
Types. Male holotype from Potreiro Velho, São Francisco de Paula, Rio Grande do Sul, Brazil, [29º28´S, 50º9´W], elev. [772m], 25.iii.1997, J. Ketterl leg., deposited in MCTP 17537, Paratypes: 1♂ 1♀, 29º28´26.619´´S, 50º9´22.4451´´W, 7.iv.2001, deposited in MCN 52014; 2♀, 29º28´26.619´´S, 50º9´22.4451´´W, 14.iv.2002, deposited in MCN 52034; 1♂, 29º28´26.619´´S, 50º9´22.4451´´W, 14.iv.2002, deposited in MCN 52035, all from the type locality, R. Ott leg.; 1♂ paratype (IBSP 57090) and 1♀ paratype (IBSP 57080) from Parque Nacional da Serra da Bocaina, São José do Barreiro, São Paulo, Brazil, [22º43´S, 44º36´W], elev. [900m], 28.iv—3.v.2002, Equipe Biota leg.
Etymology. The species epithet is a noun in apposition, refers to the Caaguaras indigenous tribe, first inhabitants of São Francisco de Paula in Rio Grande do Sul, Brazil.
Diagnosis. Males of G. caaguara can be distinguished from all other Glenognatha species by the conspicuously rounded basal apophysis of the paracymbium (Fig. 73H). Females can be easily differentiated from all other Glenognatha (except G. gloriae) by having three promarginal and three retromarginal teeth (Figs. 72D–F); distinguished from G. gloriae by the slightly projected clypeus in lateral view (Fig. 71F).
Male (holotype): Habitus as in Figures 71 A –D. Carapace yellow-brownish, darker along furrows. Sternum brown with darker edges. Abdomen oval, strongly depigmentated, with irregular pattern of two diffused dusky bands that join medially at posterior region. Silver guanine spots scattered in two longitudinal bands dorsally and in lateral surfaces. Ventrally without silver spots. Legs light yellow-brownish. Total length 1.85. Cephalothorax 0.87 long, 0.80 wide, 0.57 high. Abdomen 0.97 long, 0.82 wide, 0.80 high. Sternum 0.50 long, 0.55 wide. Eye diameters and interdistances: AME 0.08. ALE 0.07. PME 0.13. PLE 0.08. AME-AME 0.08, AME-ALE 0.07, PME-PME 0.13, PME-PLE 0.07, ALE-PLE 0.01. Clypeus height 1.80. Chelicerae darker than cephalothorax, with a welldeveloped anterior tooth (Figs. 72 A, C). Three promarginal and three retromarginal teeth. (Figs. 72 A –C). Prt1 enlarged (Fig. 72 A). CFO well-developed (Fig. 72C). Leg measurements: I: femur 1.30, patella 0.32, tibia 1.30, metatarsus 1.02, tarsus 0.65, total 4.60: II: 1.15, 0.30, 1.15, 0.87, 0.55, 4.02; III: 0.75, 0.27, 0.55, 0.57, 0.37, 2.52; IV: 1.05, 0.22, 0.90, 0.75, 0.45, 3.37. DTS 0.07. DTE 0.48. Palp as in Figures 73E–H. Paracymbium with distinct rounded basal apophysis (Fig. 73H). Median region of the embolus with helical configuration (Figs. 73D, 74F–H).
Female (paratype MCN 52014). Coloration and general habitus as in male (Figs. 71E–H). Venter with a lighter area between the gonopore and the openings of the book lungs. Total length 2.10. Cephalothorax 0.97 long, 0.85 wide, 0.65 high. Abdomen 1.35 long, 1.12 wide, 1.12 high. Sternum 0.50 long, 0.52 wide. Eye diameters and interdistances: AME 0.09. ALE 0.08. PME 0.13. PLE 0.07. AME-AME 0.08, AME-ALE 0.08, PME-PME 0.14, PME-PLE 0.09, ALE-PLE 0.01. Clypeus height 1.80. Chelicerae darker than cephalothorax, with three promarginal and three retromarginal teeth (Figs. 72D–F). Leg measurements: I: femur 1.27, patella 0.32, tibia 1.35, metatarsus 1.05, tarsus 0.67, total 4.67; II: 1.25, 0.32, 1.22, 0.80, 0.62, 4.22; III: 0.82, 0.20, 0.52, 0.58, 0.37, 2.51; IV: 1.07, 0.25, 0.80, 0.75, 0.43, 3.31. DTS 0.07. DTE 0.52. Tracheal system as in Figures 74I –J. Spermathecae well-developed (Figs. 74 A –E). Uterus externus with a laminar basal portion (Fig. 74C).
Variation. Male total length 1.7–2.0 (N = 10; average 1.8), cephalothorax length 0.8–1.0 (N = 10; average 0.9), femur I length 1.3–1.4 (N = 10; average 1.3). Female total length 1.7–2.3 (N = 10; average 2.0), cephalothorax length 0.7–1.1 (N = 10; average 0.9), femur I length 0.8–1.3 (N = 10; average 1.1).
Distribution. Known from São Paulo, Santa Catarina and Rio Grande do Sul states in Brazil (Fig. 133).
Additional material examined (N = 49). BRAZIL: São Paulo: São José do Barreiro, Parque Nacional da Serra da Bocaina, [22º43´S, 44º36´W], elev. [900m], 28.iv—3.v.2002, Equipe Biota leg., Pitfall, 4♀ (IBSP 68552); 1♂ 1♀ (IBSP 57091); 1♂ (IBSP 57078). Santa Catarina: Ilhota, Morro do Baú, [26º52´5.87´´S, 48º51´12.88´´W], elev. [232m], 13.v.1996, C. N. Duchett leg., 2♂ (MCN 27631). Rio Grande do Sul: São Francisco de Paula, Potreiro Velho, [29º28´S, 50º9´W], elev. [772m], 31.iii.1997, J. Ketterl leg., 1♂ (MCTP 16065); 17.iii.1997, 1♂ (MCTP 16066); 11.iii.1997, 2♂ (MCTP 17541); 18.iii.1997, 1♀ (MCTP 17493), all collected by J. Ketterl; 12– 15.vi.1997, A. Lise leg., 1♂ (MCTP 13771); 29º28´27.121´´S, 50º9´25.0714´´W, 1.v.2001, 1♂ (MCN 52016); 29º29´15.898´´S, 50º10´59.5791´´W, 1.v.2001, 1 immature (MCN 52017); 29º28´27.121´´S, 50º9´25.0714´´W, 2.i.2001, 2♀ (MCN 52019); 29º28´26.619´´S, 50º9´22.4451´´W, 2.i.2001, 1♀ (MCN 52026); 29º29´14.82´´S, 50º10´57.8025´´W, 2.ii.2001, 1♂ (MCN 52012); 29º29´15.998´´S, 50º10´59.5791´´W, 2.ii.2001, 1♀ (MCN 52018); 29º28´27.121´´S, 50º9´25.0714´´W, 2.ii.2001, 1 immature (MCN 52021); 29º28´26.619´´S, 50º9´22.4451´´W, 2.ii.2002, 1♀ (MCN 52028); 1♀ (MCN 52029); 29º28´27.121´´S, 50º9´25.0714´´W, 2.ii.2002, 2♀ (MCN 52031); 29º29´14.82´´S, 50º10´57.8025´´W, 2.ii.2002, 1♀ (MCN 52044); 29º28´38.84296´´S, 50º10´8.63689´´W, 2.ii.2002, 1♀ (MCN 52045); 29º29´14.82048´´S, 50º10´57.80248´´W, 2.vi.2001, 1♀ (MCN 52025); 29º28´26.61861´´S, 50º9´22.44506´´W, 3.iii.2001, 1♂ (MCN 52013); 29º28´38.84296´´S, 50º10´8.63689´´W, 7.iv.2001, 1♂ (MCN 52022); 29º29´14.82048´´S, 50º10´57.80248´´W, 7.iv.2001, 1♀ (MCN 52024); 29º28´26.61861´´S, 50º9´22.44506´´W, 8.iii.2002, 1♀ (MCN 52042); 29º29´14.82048´´S, 50º10´57.80248´´W, 8.iii.2002, 1♂ (MCN 52043); 29º28´38.84296´´S, 50º10´8.63689´´W, 9.v.2001, 1♀ (MCN 52046); 29º28´27.12072´´S, 50º9´25.07136´´W, 11.x.2001, 1♀ (MCN 52032); 29º29´15.99848´´S, 50º10´59.57909´´W, 13.xi.2001, 1♀ (MCN 52039); 29º28´38.84296´´S, 50º10´8.63689´´W, 14.iv.2002, 1♂ (MCN 52023); 29º28´27.12072´´S, 50º9´25.07136´´W, 14.iv.2002, 1♂ (MCN 52036); 1♀ (MCN 52040); 29º29´14.82048´´S, 50º10´57.80248´´W, 14.iv.2002, 1♀ (MCN 52037); 29º28´27.12072´´S, 50º9´25.07136´´W, 14.ix.2002, 1♂ (MCN 52038); 29º28´38.84296´´S, 50º10´8.63689´´W, 14.ix.2002, 1♀ (MCN 52041); 29º28´27.12072´´S, 50º9´25.07136´´W, 18.v.2002, 1♀ (MCN 52030); 29º28´26.61861´´S, 50º9´22.44506´´W, 18.v.2002, 1♂ (MCN 52033); 29º29´14.82048´´S, 50º10´57.80248´´W, 23.xi.2000, 1♀ (MCN 52015); 29º29´26.61861´´S, 50º9´22.44506´´W, 25.x.2000, 1♂ (MCN 52020); 29º29´38.84296´´S, 50º10´8.63689´´W, 25.x.2000, 1♂ (MCN 52027), all collected by R. Ott.
description: Published as part of Jimmy Cabra-García & Antonio D. Brescovit, 2016, Revision and phylogenetic analysis of the orb-weaving spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae), pp. 1-183 in Zootaxa 4069 (1) on pages 89-94, DOI: 10.11646/zootaxa.4069.1.1, http://zenodo.org/record/1054149