Glenognatha vivianae, 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: 100-102

publication ID

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

publication LSID

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

persistent identifier

http://treatment.plazi.org/id/8E0E8F67-7D71-FFE0-ACBA-0A4BFDB8D1B2

treatment provided by

Plazi

scientific name

Glenognatha vivianae
status

new species

Glenognatha vivianae  new species

( Figs. 80–84View FIGURE 80View FIGURE 81View FIGURE 82View FIGURE 83View FIGURE 84, 135View FIGURE 135)

Types. Male holotype from Barragem do Rio Paraitinga, Salesópolis, São Paulo, Brazil, [23º32´5.42´´S, 45º46´56.62´´W], elev. [870m], 11–18.vi.2002, Eq. IBSP leg., deposited in IBSP 163681View MaterialsGoogleMaps  ; Paratypes: 13♂ 10♀ from the type locality, 11–18.vi.2002, Eq. IBSP leg., deposited in IBSP 147861; 1♂ from Reserva Natural da Cachoeira , Antonina, Paraná, Brazil, [25º24´2,4´´S, 48º41´18.75´´W], elev. [100m], 28.vi –2.vii.2003, HGoogleMaps  . Hofer et al. leg., deposited in IBSP 131182  ; 1♂ 2♀ from Estaçao Braskem de Proteçao Ambiental , Triunfo, Rio Grande do Sul, Brazil, [29º56´28,27´´S, 51º41´24.41´´W], elev. [6m], 19.xi.2002, R. Ott leg., deposited in MCN 34952View MaterialsGoogleMaps  ; 1♂ 1♀ from Parque do Estado de São Paulo , São Paulo, São Paulo, Brazil, [23º39´11,45´´S, 46º37´47.15´´W], elev. [811m], 13–20.v.2002, J. Valvassori leg., deposited in IBSP 59239View MaterialsGoogleMaps  .

Etymology. The species epithet is in honor of the first author’s wife, Viviana Motato-Vásquez, in acknowledgment of her constant support and encouragement. The name is a noun in genitive.

Diagnosis. Males of G. vivianae  can be easily distinguished from all other Glenognatha  species by the bifurcated embolus tip ( Figs. 82DView FIGURE 82, 84CView FIGURE 84). Females resemble those of G. australis  by the bean-shaped spermathecae ( Figs. 83 A –DView FIGURE 83); distinguished from the latter species by having the Prt1 and Prt 2 subequal in size ( Fig. 81DView FIGURE 81).

Male (holotype). Habitus as in Figures 80 A –DView FIGURE 80. Carapace brown, darker along furrows. Sternum brown with darker edges. Abdomen oval, with two irregular dusky bands that join medially in the posterior region. Silver guanine spots scattered in two longitudinal bands dorsally and in lateral surfaces. Venter with a median dusky band that ramifies laterally from posterior tracheal spiracle, guanine silver spots absent. Legs pale yellow-brownish. Tracheal spiracle well-sclerotized. Total length 2.20. Cephalothorax 1.00 long, 0.81 wide, 0.72 high. Abdomen 1.25 long, 1.00 wide, 1.00 high. Sternum 0.52 long, 0.55 wide. Eye diameters and interdistances: AME 0.09. ALE 0.08. PME 0.10. PLE 0.08. AME-AME 0.10, AME-ALE 0.09, PME-PME 0.11, PME-PLE 0.09, ALE-PLE 0.01. Clypeus height 2.11. Chelicerae brownish. Three promarginal and four retromarginal teeth ( Figs. 81View FIGURE 81 A-C). Ret 1 on the posterior surface ( Fig. 81BView FIGURE 81). Leg measurements: I: femur 1.50, patella 0.37, tibia 1.55, metatarsus 1.25, tarsus 0.72, total 5.40; II: 1.30, 0.37, 1.28, 1.00, 0.65, 4.61; III: 0.97, 0.25, 0.72, 0.65, 0.30, 2.90; IV: 1.25, 0.25, 1.05, 0.90, 0.47, 3.92. DTS 0.16. DTE 0.52. Palp as in Figures 82E –HView FIGURE 82. Conductor lamina apically rounded ( Figs. 82 A – CView FIGURE 82, 84 A –BView FIGURE 84). Embolus tip bifurcated ( Figs. 82DView FIGURE 82, 84CView FIGURE 84).

Female ( IBSP 147809). Coloration and general habitus as in male ( Figs. 80E –HView FIGURE 80). Tracheal spiracle wellsclerotized. Total length 2.55. Cephalothorax 1.08 long, 0.93 wide, 0.8 high. Abdomen 1.45 long, 1.30 wide, 1.32 high. Sternum 0.6 long, 0.65 wide. Eye diameters and interdistances: AME 0.09. ALE 0.08. PME 0.09. PLE 0.08. AME-AME 0.08, AME-ALE 0.08, PME-PME 0.11, PME-PLE 0.11, ALE-PLE 0.01. Clypeus height 2.10. Chelicerae brownish, with three promarginal and four retromarginal teeth ( Figs. 81D –FView FIGURE 81). Leg measurements: I: femur 1.52, patella 0.37, tibia 1.45, metatarsus 1.30, tarsus 0.75, total 5.40; II: 1.30, 0.37, 1.25, 1.17, 0.62, 4.72; III: 1.07, 0.27, 0.62, 0.68, 0.38, 3.05; IV: 1.25, 0.27, 1.05, 0.92, 0.50, 4.00. DTS 0.18. DTE 0.60. Tracheal system as in Figures 83E –GView FIGURE 83. Genitalia with bean-shaped spermathecae ( Fig. 83 A –DView FIGURE 83). Uterus externus divided into two distinct portions ( Fig. 83 A –CView FIGURE 83).

Variation. Male total length 1.7–2.5 (N = 10; average 2.1), cephalothorax length 0.9–1.2 (N = 10; average 1.0), femur I length 1.2–1.5 (N = 10; average 1.4). Female total length 2.1–3.2 (N = 10; average 2.5), cephalothorax length 1.0–1.3 (N = 10; average 1.1), femur I length 1.1–1.5 (N = 10; average 1.3).

Distribution. Known from the states of São Paulo, Paraná and Rio Grande do Sul in Brazil ( Fig. 135View FIGURE 135).

Additional material examined (N =1096). BRAZIL: São Paulo  : São Paulo, Parque do Estado , [23º39´S, 46º37´W], elev. [811m], pitfall, 1–7.xi.2001, J. Valvassori, leg., 1♀ ( IBSP 59154View Materials)GoogleMaps  ; 1♂ (IBSP 59155); 1♀ (IBSP 59233); 1♂ (IBSP 59234); 2♂ (IBSP 59235); 1♂ (IBSP 59236); 2 ♀ (IBSP 59237); 1♂ (IBSP 59238); 6♂ (IBSP 59240); 2♀ (IBSP 59242); 1♂ (IBSP 59243); 13–20.v.2002, 1 ♀ (IBSP 59244); 2♂ 2 ♀ (IBSP 59245); 1♀ (IBSP 59246); 1♂ (IBSP 59247); 1♀ (IBSP 59248); 1♀ ( IBSP 59250View Materials); Biritiba Mirim, Barragem do rio Biritiba-Mirim , [23º33´S, 46º2´W], elev. [751m], 10–15.v.2003, Equipe Biota leg.GoogleMaps  , 1♀ (IBSP 117427); 1♀ (IBSP 117428); 1 immature (IBSP 11 7429); 1♂ (IBSP 117430); 1♂ (IBSP 117431); 1♂ (IBSP 117432); 1♂ (IBSP 117433); 1♂ (IBSP 117434); 1 immature (IBSP 117435); 1 immature (IBSP 117436); 1♂ (IBSP 117437); 1♂ (IBSP 117438); 1♀ (IBSP 117439); 1 immature (IBSP 117440); 1♀ (IBSP 117441); 1 immature (IBSP 147790); 10–15.v.2003, 3♀ (IBSP 147791); 10–15.v.2003, 2♂ (IBSP 147792); 10–15.v.2003, 1♂ 1♀ ( IBSP 147793View Materials); Salesópolis, Barragem do Rio Paraitinga, [23º32´S, 45º46´W], elev. [870m], 18–25.vi.2002, EqGoogleMaps  . IBSP leg., 1♀ (IBSP 146596); 1♂ (IBSP 147309); 1♀ (IBSP 147311); 11–18.vi.2002, 11♂ 2♀ (IBSP 147642); 17♂ 3♀ (IBSP 147643); 3♂ 2♀ (IBSP 147644); 4♂ 5♀ (IBSP 147645); 2♂ 1♀ (IBSP 147646); 10♂ 4♀ (IBSP 147647); 5♂ 7♀ (IBSP 147648); 4♂ 13♀ (IBSP 147649); 9♂ 6♀ (IBSP 147650); 13♂ 1♀ (IBSP 147651); 7♂ 2♀ (IBSP 147652); 2♂ (IBSP 147653); 6♂ 6♀ (IBSP 147654); 11♂ 6♀ (IBSP 147655); 3♂ 4♀ (IBSP 147656); 4♂ 3♀ (IBSP 147657); 13♂ 2♀ (IBSP 147658); 11–18.vi.2002, 7♂ 4♀ (IBSP 147797); 9♂ 6♀ (IBSP 147798); 2♂ 1♀ (IBSP 147799); 12♂ 8♀ (IBSP 147800); 7♂ 1♀ (IBSP 147801); 1♂ 3♀ (IBSP 147802); 3♂ (IBSP 147803); 4♂ 4♀ (IBSP 147804); 5♂ 6♀ (IBSP 147805); 3♂ 4♀ (IBSP 147806); 2♂ 1♀ (IBSP 147807); ♂ 3♀ (IBSP 147808); 3♂ 5♀ (IBSP 147809); 11♂ 7♀ (IBSP 147810); 4♂ 2♀ (IBSP 147811); 11♂ 5♀ (IBSP 147812); 3♂ 2♀ (IBSP 147813); 7♂ 4♀ (IBSP 147814); 6♂ 4♀ (IBSP 147815); 6♂ 5♀ (IBSP 147816); 9♂ 10♀ (IBSP 147817); 2♂ 3♀ (IBSP 147818); 8♂ 4♀ 1 immature (IBSP 147819); 9♂ 7♀ 1 immature (IBSP 147820); 7♂ 1♀ (IBSP 147821); 2♂ 5♀ (IBSP 147822); 5♂ 2♀ (IBSP 147823); 1♀ (IBSP 147824); 3♂ 3♀ 2 immature (IBSP 147825); 9♂ 6♀ 1 immature (IBSP 147 826); 12♂ 17♀ (IBSP 147827); 6♂ 2♀ 1 immature (IBSP 1 47828); 8♂ 3♀ (IBSP 147829); 10♂ 1♀ (IBSP 147830); 28♂ 29♀ 1 immature (IBSP 147 831); 6♂ 5♀ (IBSP 147832); 6♂ 8♀ (IBSP 147833); 9♂ 3♀ (IBSP 147834); 2♂ 3♀ (IBSP 147835); 3♂ 1♀ (IBSP 147836); 3♂ 1♀ (IBSP 147837); 4♂ 6♀ (IBSP 147838); 10♂ 4♀ (IBSP 147839); 4♂ 3♀ (IBSP 147840); 4♂ 3♀ (IBSP 147841); 3♂ (IBSP 147842); 5♂ 1♀ (IBSP 147843); 7♂ 5♀ (IBSP 147844); 5♂ 8♀ (IBSP 147845); 2♂ (IBSP 147846); 9♂ 1♀ (IBSP 147847); 9♂ 5♀ (IBSP 147848); 3♂ 4♀ (IBSP 147849); 5♂ 3♀ (IBSP 147850); 3♂ 3♀ (IBSP 147851); 5♂ 4♀ (IBSP 147852); 2♂ 2♀ (IBSP 147853); 11♂ 4♀ (IBSP 147854); 1♂ 2♀ (IBSP 147855); 8♂ 2♀ (IBSP 147856); 9♂ 5♀ (IBSP 147857); 6♂ 15♀ (IBSP 147858); 6♂ 2♀ (IBSP 147859); 13♂ 8♀ (IBSP 147860); 12♂ 4♀ (IBSP 147862); 12♂ 4♀ (IBSP 149115); 4♂ 10♀ (IBSP 149202); 9♂ 6♀ (IBSP 149203); 2♂ (IBSP 149204); 3♂ (IBSP 149205); 4♂ 2♀ (IBSP 149206); 1♂ 1♀ (IBSP 149207); 4♂ 1♀ (IBSP 149208); 4♂ 4♀ (IBSP 149209); 3♂ 4♀ (IBSP 149210); 7♂ 6♀ (IBSP 149211); 3♂ 3♀ (IBSP 149212); 7♂ 13♀ (IBSP 149213); 13♂ 3♀ (IBSP 149214); 7♂ 3♀ (IBSP 149215); 16♂ 4♀ (IBSP 149216); 3♂ 2♀ (IBSP 149217); 2♂ 2♀ (IBSP 149218).

IBSP

Instituto Biologico de Sao Paulo

MCN

McNeese State University

DTE

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