Glenognatha gouldi, 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 : 141-143

publication ID

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

publication LSID

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

DOI

https://doi.org/10.5281/zenodo.5666980

persistent identifier

https://treatment.plazi.org/id/8E0E8F67-7D9E-FF06-ACBA-0EFEFA30D61D

treatment provided by

Plazi

scientific name

Glenognatha gouldi
status

new species

Glenognatha gouldi   new species

( Figs. 114–117 View FIGURE 114 View FIGURE 115 View FIGURE 116 View FIGURE 117 , 137 View FIGURE 137 )

Types. Male holotype from Nogales , Santa Cruz Co., Arizona, United States of America, [31º20´N, 110º56´W], elev. [1183m], 1.ix.1991, R. L. Edwards leg., deposited in USNM ENT 00879001 View Materials GoogleMaps   ; Paratypes: 2♂ 1♀ from the type locality, same data as the holotype, deposited in USNM ENT 00879002 View Materials GoogleMaps   ; 1♂ from Lerma , Mexico, [19º17´N, 99º43´W], elev. [2400m], 25.vi.1941, A. M. & L. I. Davis leg., deposited in AMNH GoogleMaps   .

Etymology. The species epithet is in honor of Stephen Jay Gould (1941–2002), an extraordinary paleontologist, evolutionary biologist and historian of science. The name is a noun in genitive.

Diagnosis. Males of G. gouldi   resemble those of G. emertoni   , G. minuta   and G. timbira   by the enlarged Ret2 and Ret3 ( Figs. 115B–C View FIGURE 115 ). G. gouldi   can be distinguished from the latter three species by the nearly 180º curved tip of the embolus ( Figs. 116 A, G View FIGURE 116 ), and the strongly curved Ret2 ( Fig. 115B View FIGURE 115 ). Females can be distinguished from those of G. emertoni   and G. minuta   by the absence of spermathecae ( Fig. 117 View FIGURE 117 ) and from those of G. timbira   by the Prt1 base not enlarged ( Fig. 115D View FIGURE 115 ).

Male (holotype, USNM). Habitus as in Figures 114 A –D View FIGURE 114 . Carapace dark brown, darker along furrows. Sternum dark brown. Abdomen dorsally with two diffused longitudinal black bands in the anterior region and thin transversal black bands in its posterior region. Silver guanine spots scattered in dorsal and lateral surfaces. Venter with a median black band surrounded by silver guanine spots. Tracheal spiracle well-sclerotized. Legs yellowbrownish. Total length 3.95. Cephalothorax 1.80 long, 1.35 wide, 0.90 high. Abdomen 2.10 long, 1.65 wide, 1.55 high. Sternum 0.90 long, 0.87 wide. Eye diameters and interdistances: AME 0.09. ALE 0.10. PME 0.10. PLE 0.07. AME-AME 0.1, AME-ALE 0.20, PME-PME 0.16, PME-PLE 0.20, ALE-PLE 0.01. Clypeus height 2.10. Chelicerae dark brown. Three promarginal and five retromarginal teeth ( Figs. 115 A –C View FIGURE 115 ). Ret2 strongly curved ( Fig. 115B View FIGURE 115 ). Leg measurements: I: femur 2.10, patella 0.65, tibia 2.02, metatarsus 1.55, tarsus 0.82, total 7.15; II: 1.90, 0.62, 1.80, 1.60, 0.82; III: 1.35, 0.47, 1.00, 0.97, 0.55, 4.35; IV: 1.77, 0.47, 1.50, 1.30, 0.62, 5.67. Metatarsus IV with one trichobothrium. DTS 0.45. DTE 0.90. Palp as in Figures 116E–H View FIGURE 116 . Conductor and cymbium slender ( Figs. 116 A, E–H View FIGURE 116 ). Embolus tip nearly 180º curved ( Figs. 116 A, G View FIGURE 116 ).

Female (paratype, USNM 00879002). Coloration and general habitus as in male ( Figs. 114E–H View FIGURE 114 ). Cephalothorax, abdomen and legs clearer than the male. Abdomen without clearly defined black bands. Silver guanine spots uniformly scattered in dorsal and lateral surfaces. Venter with a median diffused dark band clearer towards the petiole and surrounded by silver guanine spots. Tracheal spiracle well-sclerotized. Total length 4.25. Cephalothorax 1.67 long, 1.42 wide, 1.12 high. Abdomen 2.50 long, 2.02 wide, 1.87 high. Sternum 0.90 long, 0.90 wide. Eye diameters and interdistances: AME 0.09. ALE 0.10. PME 0.10. PLE 0.08. AME-AME 0.07, AME-ALE 0.17, PME-PME 0.13, PME-PLE 0.17, ALE-PLE 0.01. Clypeus height 1.90. Chelicerae brown. Three promarginal and four retromarginal teeth. ( Figs. 115D–F View FIGURE 115 ). Leg measurements: I: femur 1.85, patella 0.62, tibia 1.77, metatarsus 1.50, tarsus 0.81, total 6.56; II: 1.77, 0.57, 1.65, 1.42, 0.78, 6.2; III: 1.25, 0.42, 0.87, 0.82, 0.50, 3.87; IV: 1.70, 0.40, 1.27, 1.22, 0.60, 5.20. Metatarsus IV with one trichobothrium. DTS 0.47. DTE 0.56. Genitalia without spermathecae and copulatory ducts ( Fig. 117 View FIGURE 117 ). UE with a median projection ( Fig. 117 A View FIGURE 117 ).

Distribution. Known from Arizona state in United States of America and Mexico state in Mexico ( Fig. 137 View FIGURE 137 ).

USNM

Smithsonian Institution, National Museum of Natural History

AMNH

American Museum of Natural History

DTE

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