Glenognatha caaguara, Cabra-García & Brescovit, 2016

Jimmy Cabra-García & Antonio D. Brescovit, 2016, Revision and phylogenetic analysis of the orb-weaving spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae), Zootaxa 4069 (1), pp. 1-183: 89-94

publication ID

http://doi.org/10.11646/zootaxa.4069.1.1

publication LSID

lsid:zoobank.org:pub:52FC658C-78C7-49FC-9961-8AC43CA03101

DOI

http://doi.org/10.5281/zenodo.5666954

persistent identifier

http://treatment.plazi.org/id/8E0E8F67-7D4A-FFD5-ACBA-0D85FD55D4D6

treatment provided by

Plazi

scientific name

Glenognatha caaguara
status

new species

Glenognatha caaguara   new species

( Figs. 71–74 View FIGURE 71 View FIGURE 72 View FIGURE 73 View FIGURE 74 , 133 View FIGURE 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 View Materials GoogleMaps   , 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 View Materials ) and 1♀ paratype ( IBSP 57080 View Materials ) 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. GoogleMaps  

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 View FIGURE 73 ). Females can be easily differentiated from all other Glenognatha   (except G. gloriae   ) by having three promarginal and three retromarginal teeth ( Figs. 72D–F View FIGURE 72 ); distinguished from G. gloriae   by the slightly projected clypeus in lateral view ( Fig. 71F View FIGURE 71 ).

Male (holotype): Habitus as in Figures 71 A –D View FIGURE 71 . 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 View FIGURE 72 ). Three promarginal and three retromarginal teeth. ( Figs. 72 A –C View FIGURE 72 ). Prt1 enlarged ( Fig. 72 A View FIGURE 72 ). CFO well-developed ( Fig. 72C View FIGURE 72 ). 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 View FIGURE 73 . Paracymbium with distinct rounded basal apophysis ( Fig. 73H View FIGURE 73 ). Median region of the embolus with helical configuration ( Figs. 73D View FIGURE 73 , 74F–H View FIGURE 74 ).

Female (paratype MCN 52014 View Materials ). Coloration and general habitus as in male ( Figs. 71E–H View FIGURE 71 ). 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 View FIGURE 72 ). 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 View FIGURE 74 . Spermathecae well-developed ( Figs. 74 A –E View FIGURE 74 ). Uterus externus with a laminar basal portion ( Fig. 74C View FIGURE 74 ).

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 View FIGURE 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 View Materials ) GoogleMaps   ; 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 View Materials ) GoogleMaps   . 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 View Materials ) GoogleMaps   ; 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 View Materials )   ; 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.

DTE

Centro de Investigaciones Cient�ficas y Transferencia de Tecnolog�a a la Producci�n (CICyTTP-CONICET)

MCN

McNeese State University