Glenognatha gloriae ( Petrunkevitch, 1930 ),

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: 135-140

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/8E0E8F67-7D94-FF03-ACBA-0D35FDEFD02F

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Plazi

scientific name

Glenognatha gloriae ( Petrunkevitch, 1930 )
status

 

Glenognatha gloriae ( Petrunkevitch, 1930) 

( Figs. 110View FIGURE 110 –113, 138)

Diplocephalus gloriae Petrunkevitch, 1930: 224  , fig. 72–74 (male holotype from Luquillo Mountains , La Gloria, Puerto Rico, 30.i.1926, immature female paratype from El Yunque, Puerto Rico, 11.x.1925, both collected by A. Petrunkevitch, deposited in YPM, only the immature female paratype examined; male paratype from Adjuntas, Puerto Rico, 8.vi.1915, deposited in AMNH, not examined). 

Mimognatha gloriae: Crosby & Bishop, 1933: 108  .

Glenognatha gloriae: Cabra et al. 2014: 1029  , figs. 1J, 2K, 4C, 5I, 8A; World Spider Catalog 2015.

Diagnosis. Males of G. gloriae  resemble those of G. spherella  and G. australis  by the prominent Ret2 ( Figs. 111B – CView FIGURE 111) and the absence of anterior tooth ( Fig. 111 AView FIGURE 111). G. gloriae  can be distinguished from the latter two species by the strongly projected clypeus in lateral view ( Fig. 110BView FIGURE 110). Females can be distinguished from G. spherella  by the absence of cheliceral bulge ( Figs. 111EView FIGURE 111) and from G. australis  by having three retromarginal teeth ( Fig. 111FView FIGURE 111).

Description. Male described by Petrunkevitch (1930). Additional data.

Male ( MCZ 125482). Habitus as in Figures 110 A –DView FIGURE 110. Abdomen with scattered silver guanine spots in the dorsal, lateral and ventral surfaces. Total length 1.70. Cephalothorax 0.75 long, 0.62 wide, 0.52 high. Abdomen 0.92 long, 0.72 wide, 0.7 high. Sternum 0.36 long, 0.42 wide. Eye diameters and interdistances: AME 0.04. ALE 0.03. PME 0.06. PLE 0.03. AME-AME 0.04, AME-ALE 0.07, PME-PME 0.06, PME-PLE 0.07, ALE-PLE 0.01. Clypeus height 2.50. Chelicerae yellow-brownish. Three promarginal and three retromarginal teeth ( Figs. 111 A – CView FIGURE 111). Ret2 enlarged ( Figs. 111B –CView FIGURE 111). Leg measurements: I: femur 1.15, patella 0.25, tibia 1.00, metatarsus 0.87, tarsus 0.47, 3.75 total; II: 1.10, 0.25, 1.02, 0.87, 0.40, 3.65; III: 0.75, 0.20, 0.55, 0.52, 0.30, 2.32; IV: 0.97, 0.20, 0.77, 0.72, 0.37, 3.05. DTS 0.10. DTE 0.50. Palp as in Figures 112E –HView FIGURE 112. Conductor large enclosing almost totally the embolus ( Figs. 112 AView FIGURE 112, 113F –H). Embolus short, with coiled tip ( Figs. 112DView FIGURE 112, 113G).

Female ( MCZ 125485) (Note: the female is described here for the first time). Habitus as in Figures 110E –HView FIGURE 110. Carapace pale yellow with two greyish longitudinal bands that join medially in the posterior region. Sternum dusky yellow, darker on edges. Abdomen greyish, dorsally with two diffused longitudinal black bands that join medially forming thin transverse bands. Silver guanine spots scattered in the dorsal and lateral surfaces Venter with two pale longitudinal bands covered with silver guanine spots. Legs pale yellow. Total length 1.55. Cephalothorax 0.67 long, 0.60 wide, 0.45 high. Abdomen 0.92 long, 0.72 wide, 0.65 high. Sternum 0.42 long, 0.42 wide. Eye diameters and interdistances: AME 0.03. ALE 0.04. PME 0.07. PLE 0.04. AME-AME 0.05, AME-ALE 0.06, PME-PME 0.09, PME-PLE 0.04, ALE-PLE 0.01. Clypeus height 3.10. Chelicerae pale yellow. Three promarginal and three retromarginal teeth ( Figs. 111D –FView FIGURE 111). Leg measurements: I: femur1.02, patella 0.30, tibia 0.87, metatarsus 0.82, tarsus 0.42, total 3.45; II: 0.90, 0.25, 0.87, 0.80, 0.37, 3.20; III: 0.65, 0.20, 0.52, 0.52, 0.30, 2.20; IV: 0.87, 0.22, 0.72, 0.67, 0.36, 2.86. DTS 0.07. DTE 0.32. Genitalia with well-developed spermathecae (Figs. 113 A –E). UE with a median projection (Fig. 113 A).

Variation. Male total length 1.5–2.0 (N = 7; average 1.7), cephalothorax length 0.5–0.9 (N = 7; average 0.7), femur I length 1.0–1.2 (N = 7; average 1.1). Female total length 1.5–2.3 (N = 4; average 1.9), cephalothorax length 0.6–0.9 (N = 4; average 0.7), femur I length 0.7–1.3 (N = 4; average 1.0).

Distribution. Known only from Puerto Rico ( Fig. 138).

Remarks. Some vials with male and female pairs captured near the collection sites of the type material were available for study. After comparison of the male specimens with the original description ( Petrunkevitch 1930) and the immature female paratype, they were identified as G. gloriae  based on the following characters: 1) all the individuals have a conspicuously projected clypeus as the immature female paratype and the illustration of the male holotype ( Petrunkevitch 1930, fig. 73), 2) the conductor is as depicted by Petrunkevitch (1930, fig. 74) and finally 3), the specimens have the “spine-like” retromarginal teeth mentioned in the original description ( Petrunkevitch 1930). It is important to note that Petrunkevitch described the type of G. gloriae  as having only one retromarginal tooth (Ret2). Nevertheless this condition was not observed in any of the Glenognatha  here examined; probably the Ret1 and the Ret 3 were lost in that specimen.

F IGURE 113. Glenognatha gloriae  . A –C, female genitalia. A, dorsal (arrow, median projection). B, ventral. C, lateral. D –E, spermathecae and copulatory duct. F, male left palp ventro-anterior. G –H, embolus and conductor. G, ventro-anterior. H, dorsal. Scale bars, 20 µm (A –C, F –H), 10 µm (D –E). C: conductor. CD: copulatory duct. CRa: conductor retrolateral apophysis. E: embolus. LSD: long-stem ducts. MC: membranous chamber. S: spermathecae. T: tegulum. UE: uterus externus.

Additional material examined (N = 10). New records: PUERTO RICO: Bosque Estatal de Maricao , [18º6´N, 66º58´W], elev. [319m], vii.1958, A. F. Archer leg., 1♀ 1♂ ( AMNH);GoogleMaps  [Parque Nacional el Yunque], Baño de Oro trail 1–2 Km West of Rd. 191, [18º17´N, 65º49´W], elev. 650m – 700m, vii.1958, P. leg., 1♀ 1♂ ( MCZ 125485View Materials)GoogleMaps  ; Toro negro forest, [18´´9´6.74´´N, 66º31´25.85´´W], elev. 1000m, 28.vii.1966, S. Peck leg., 1 immature ( AMNH)GoogleMaps  ; Cordillera Central, Area recreo Doña Juana N. of Villalba, [18º9´N, 66º29´W], elev. 1000m, 26.iii.1986, H. L. Levi leg., 1♀ 4♂ ( MCZ 125482View Materials).GoogleMaps 

YPM

Peabody Museum of Natural History

AMNH

American Museum of Natural History

MCZ

Museum of Comparative Zoology

DTE

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

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Tetragnathidae

Genus

Glenognatha

Loc

Glenognatha gloriae ( Petrunkevitch, 1930 )

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

Mimognatha gloriae:

Crosby 1933: 108
1933
Loc

Diplocephalus gloriae

Petrunkevitch 1930: 224
1930