Glenognatha gaujoni Simon, 1895

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: 65-72

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/8E0E8F67-7D52-FFCF-ACBA-0B3DFB6BD767

treatment provided by

Plazi

scientific name

Glenognatha gaujoni Simon, 1895
status

 

Glenognatha gaujoni Simon, 1895 

( Figs. 50–55View FIGURE 50View FIGURE 51View FIGURE 52View FIGURE 53View FIGURE 54View FIGURE 55, 132View FIGURE 132)

Glenognatha gaujoni Simon, 1895: 151  (male holotype from Loja, Ecuador, Gaujon leg., deposited in MNHN, examined); Cabra-García et al. 2014: 1029, figs. 1 A –B, 1H, 2I, 7G, 9E –F; World Spider Catalog 2015.

Diagnosis. Males of G. gaujoni  resemble those of G. globosa  and G. patriceae  by the presence of thin pleural bars between coxae II –III ( Fig. 50CView FIGURE 50) and by the slender palpal tibia (longer than 1.5 times the maximum tibia width) ( Figs. 52 A, EView FIGURE 52). It can be distinguished from the two latter species by the presence of scale-shaped projections in the dorsal surface of the embolus ( Figs. 54K –LView FIGURE 54). Females are diagnosed by the presence of anterior tooth, ectal apophysis and CFO on the chelicerae ( Figs. 51D –FView FIGURE 51).

Description. Male ( IBSP 26965). Habitus as in Figures 50 A –DView FIGURE 50. Carapace brown, with three dusky longitudinal bands (two lateral and one medial). Sternum pale brown. Abdomen greyish, dorsally with black patches arranged in two longitudinal bands. Silver guanine spots scattered in the dorsal and lateral surfaces. Venter with black median patch between the epigastric furrow and the petiole. Silver guanine spots scattered between the tracheal spiracle and the epigastric furrow. Tracheal spiracle well-sclerotized. Legs yellow-brownish. Pleural bars between coxae I –II, II –III and III –IV. Total length 3.60. Cephalothorax 1.55 long, 1.17 wide, 0.95 high. Abdomen 2.17 long, 1.37 wide, 1.22 high. Sternum 0.90 long, 0.70 wide. Eye diameters and interdistances: AME 0.14. ALE 0.10. PME 0.15. PLE 0.12. AME-AME 0.11, AME-ALE 0.08, PME-PME 0.13, PME-PLE 0.08, ALE-PLE 0.02. Clypeus height 1.10. Chelicerae brown, with ramified setae in the basal portion of the posterior surface ( Figs. 55View FIGURE 55 H- I). Three promarginal and four retromarginal teeth ( Figs. 51View FIGURE 51 A-C, 55G-H). Cheliceral fang outgrowth welldeveloped ( Figs. 51 AView FIGURE 51, 55GView FIGURE 55). Ret1 on the posterior surface ( Fig. 51BView FIGURE 51, 55HView FIGURE 55). Leg measurements: I: femur 3.00, patella 0.65, tibia 3.05, metatarsus 2.97, tarsus 1.47, total 11.15; II: 2.72, 0.60, 2.57, 2.50, 1.22, 9.62; III: 1.75, 0.45, 1.42, 1.42, 0.55, 5.60; IV: 2.35, 0.42, 1.92, 1.90, 0.85, 7.45. DTS 0.52. DTE 0.62. Epiandrous fusules as in Figure 55BView FIGURE 55. Spinnerets as in Figures 55C –FView FIGURE 55. Palp as in Figures 52E –HView FIGURE 52. Palp tibia longer than wide ( Figs. 52 A, EView FIGURE 52). Conductor lamina in dorsal view with a conspicuous excavation ( Figs. 52CView FIGURE 52, 54GView FIGURE 54). Embolus widened subapically, with projection beyond embolic opening ( Figs. 54B, I –KView FIGURE 54).

Female ( MUSM 0504906) (Note: the female is here described for the first time). Coloration and general habitus as in male ( Figs. 50E –HView FIGURE 50). Abdomen greyish, dorsally with three longitudinal bands of black patches that forms thin transversal bands in the posterior region. Venter with a black median patch between the gonopore and the petiole. Silver guanine spots arranged in two longitudinal bands between the tracheal spiracle and the epigastric furrow. Tracheal spiracle well-sclerotized. Legs yellow-brownish. Pleural bars between coxae I –II, II –III and III – IV. Total length 4.35. Cephalothorax 1.85 long, 1.30 wide, 1.12 high. Abdomen 2.67 long, 1.70 wide, 1.82 high. Sternum 0.80 long, 0.80 wide. Eye diameters and interdistances AME 0.60. ALE 0.45. PME 0.70. PLE 0.55. AME- AME 0.50, AME-ALE 0.80, PME-PME 0.10, PME-PLE 0.77, ALE-PLE 0.02. Clypeus height 1.10. Chelicerae brown. Three promarginal and four retromarginal teeth ( Figs. 51D –FView FIGURE 51). Anterior tooth present ( Figs. 51D, FView FIGURE 51). Ectal apophysis well-developed ( Figs. 51D –FView FIGURE 51). Cheliceral fang outgrowth well-developed ( Figs. 51D, FView FIGURE 51). Ret1 on the posterior surface ( Fig. 51EView FIGURE 51). Leg measurements: I: femur 3.25, patella 0.55, tibia 2.75, metatarsus 3.25, tarsus 1.37, total; II: 3.00, 0.65, 2.90, 2.85, 1.25, 10.65; III: 1.75, 0.37, 1.30, 1.55, 0.67, 5.65; IV: 2.60, 0.50, 2.10, 2.10, 0.85, 8.15. DTS 0.60. DTE 1.20. Tracheal system as in Figures 53J –LView FIGURE 53. Spinnerets as in Figures 53F –IView FIGURE 53. Genitalia without spermathecae ( Figs. 53B –EView FIGURE 53). UE distal portion tubiform ( Figs. 53B, DView FIGURE 53).

Variation. Male total length 3.6–4.9 (N = 10; average 4.2), cephalothorax length 1.5–2.0 (N = 10; average 1.7), femur I length 2.9–3.7 (N = 10; average 3.1). Female total length 3.7–4.5 (N = 10; average 4.0), cephalothorax length 1.6–1.9 (N = 10; average 1.7), femur I length 2.5–3.3 (N = 10; average 3.0).

Distribution. Known from the Amazonian regions of Colombia, Ecuador, Peru and Brazil ( Fig. 132View FIGURE 132).

Additional material examined (N = 126). New records: COLOMBIA: Meta: Carimagua , 4º36´8.1´´N, 71º20´34.1´´W, elev. 173m, 15.iv.2012, D. Martínez leg.GoogleMaps  , 2♀ 1♂ (ICN 7828); Villavicencio, Bosque Bavaria, [4º9´N, 73º38´W], elev. [467m], 14.v.2005, Sistemática Animal leg., 1♀ ( ICN 4487View Materials). VENEZUELA: Amazonas: Cerro de la Neblina , 0º50´S, 66º9´W, elev. 140m, 4–12.ii.1984, D. Davis & T. McCabe leg.GoogleMaps  , 1♀ ( USNM). ECUADOR: Napo: Limoncocha , [0º58´S, 77º49´W], elev. [562m], 12.xii.1971, R. Buskirk leg.GoogleMaps  , 3♀ ( MCZ 125477View Materials). PERU: Cuzco: Convención, Cerro Dorado, Quillabamba [12º50´S, 72º44´W], elev. 1500m, 18.vi.1964, B. Malkin leg.GoogleMaps  , 1♀ ( AMNH); Cashiriari, Rio Camisea , 11º52´S, 72º39´W, elev. 690m, xii.1997, S. Córdoba leg.GoogleMaps  , 1♂ (MUSM 0504920); Parque Nacional Manu, Carretera Paucartambo-Pillcopata, quebrada quita calzón, [13º2´S, 71º31´W], elev. 1180m, ix.1991, B. Leon leg., 1♂ ( MUSM 0504919). Huánuco: Sta. Teresa. Huallaga , [9º40´S, 75º30´W], elev. 600m, viii.1954, F. Woytkowski leg.GoogleMaps  , 1♀ ( CAS 9039649View Materials). Loreto: Jenaro Herrera, Quebrada el Baño , [4º54´S, 75º40´W], elev. 100m, 26.viii.1988, D. Silva leg.GoogleMaps  , 1♂ ( USNM). Madre de Dios: 15 km E Puerto Maldonado , 12º33´S, 69º3´W, elev. 200m, 17.vii.1989, D. Silva leg.GoogleMaps  , 9♀ 3♂ 2 immature ( MUSM 0 5 04926); Boca del rio los Amigos , 12º34´S, 70º6´W, elev. 270m, 6.xii.2005, J. A. Ochoa et al. leg.GoogleMaps  , 2♀ ( MUSM 0501093); Zona Reserva Pakitsa , 11º56´S, 71º17´W, elev. 356m, 2–3.v.1991, D. Silva leg.GoogleMaps  , 1♀ (MUSM 0504912); 9.v.1991, D. Silva leg., 1♀ (MUSM 0504915); 13.v.1991, D. Silva leg., 1♀ 1♂ (MUSM 0504908); 25.v.1991, D. Silva leg., 3♀ (MUSM 0504922); 6.x.1987, J. Coddington & D. Silva leg., 6♀ 7♂ 1 immature ( MUSM 0509928); Zona Reserva Pakitsa , quebrada picaflor, 11º56´S, 71º17´W, elev. 356m, 10–11.v.1991, D. Silva leg.GoogleMaps  , 4♀ 2♂ (MUSM 0504914); 8.v.1991, D. Silva leg., 1♀ 3♂ ( MUSM 0504923); Zona Reserva Tambopata , [12º13´S, 69º51´W], elev. 290m, 10– 11.v.1991, D. Silva leg.GoogleMaps  , 7♀ 7♂ ( MUSM 0504927); Zona Reserva Tambopata , [12º50´S, 69º17´W], elev. 290m, 21.v.1988, D. Silva leg.GoogleMaps  , 2♀ 2♂ ( USNM); Zona Reservada de Manu, Puesto de Vigil., Pakitsa , 11º58´S, 71º18´W, elev. [425m], 6.x.1987GoogleMaps  , 6♀ 5♂ 1 immature (USNM); 1.x.1987, 1♀ 1♂ (USNM); 28.ix.1987, 2♀ (USNM); 1.x.1987, 3♀ 1♂ (USNM); 5.x.1987, 1♀ ( USNM), all collected by D. Silva & J. Coddington. Pasco: Huancabamba , quebrada chispa, 10º10´S, 75º15´W, elev. 345m, 4.xi.1986, D. Silva leg.GoogleMaps  , 1 ♂ ( MUSM 0504918); Huancabamba , quebrada castillo, 10º10´S, 75º15´W, elev. 345m, 10.ix.1987, D. Silva leg.GoogleMaps  , 1♀ 1♂ (MUSM 0504906); 2♀ 1♂ ( USNM); Santa Rosa, río Palcazú , [10º27´S, 75º29´W], elev. 1776m, 24.ix.1991, P. Hocking leg.GoogleMaps  , 1♀ ( MUSM 0504902). Puno: Tambopata-Candamo , 13º21´S, 69º33´W, elev. 380m, 27.viii.1992, I. Bohorquez leg.GoogleMaps  , 2♀ 1♂ 2 immature ( MUSM 0504916). BRAZIL: Acre: Marechal Thaumaturgo, Parque Nacional da Serra do Divisor , [8º17´S, 73º19´W], elev. [262m], 14.iii.1997, L. Resende & R. Vieira leg.GoogleMaps  , 1♀ 1♂ (IBSP 12612); 25.iii.1997, L. Resende & S. Vieira leg., 1♀ 1♂ ( IBSP 12182View Materials). Amazonas: Manaus, Reserva do PDBFF, [2º29´S, 60º2´W], elev. [115m], ii –ix.2001, E. M. Venticinque leg.GoogleMaps  , 1♀ (IBSP 55545); Manaus, Reserva Florestal Adolpho Ducke, [2º59´S, 59º56´W], elev. [90m], vii.1999, A. J. Santos leg., 1♀ 2♂ (IBSP 26965); 10.iv.1992, S. Darwich leg, 1♀ 1♂ ( MCTP 2715View Materials). Rondônia: Porto Velho, Mutum, [8º33´S, 63º42´W], elev. [83m], 7.vi.2011, M. C. Silveira leg.GoogleMaps  , 2♂ ( MZSP 41003View Materials). Roraima: Pacaraima , [4º25´S, 61º8´W], elev. [480m], 25.vi—5.vii.1988, J. A. Rafael leg.GoogleMaps  , 1♂ ( MCN 19742View Materials). Mato Grosso: Vale São Domingos / Pontes e Lacerda, Usina hidrelétrica de Guaporé , [15º15´S, 59º12´W], elev. [262m], x.1999, Equipe Resgate et al. leg.GoogleMaps  , 1♀ ( IBSP 41537View Materials). São Paulo: Ribeirão Preto , [21º7´S, 47º51´W], elev. [567m], 2003–2005, E. Nascimento et al. leg.GoogleMaps  , 1♂ (IBSP 58162).

MNHN

Museum National d'Histoire Naturelle

IBSP

Instituto Biologico de Sao Paulo

DTE

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

USNM

Smithsonian Institution, National Museum of Natural History

PERU

Universit� di Perugia

AMNH

American Museum of Natural History

MCN

McNeese State University

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Glenognatha

Loc

Glenognatha gaujoni Simon, 1895

Jimmy Cabra-García & Antonio D. Brescovit 2016
2016
Loc

Glenognatha gaujoni

Cabra-Garcia 2014: 1029
Simon 1895: 151
2014