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

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/8E0E8F67-7D9E-FF06-ACBA-0EFEFA30D61D

treatment provided by

Plazi

scientific name

Glenognatha gouldi
status

new species

Glenognatha gouldi  new species

( Figs. 114–117View FIGURE 114View FIGURE 115View FIGURE 116View FIGURE 117, 137View 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 00879001View MaterialsGoogleMaps  ; Paratypes: 2♂ 1♀ from the type locality, same data as the holotype, deposited in USNM ENT 00879002View MaterialsGoogleMaps  ; 1♂ from Lerma , Mexico, [19º17´N, 99º43´W], elev. [2400m], 25.vi.1941, A. M. & L. I. Davis leg., deposited in AMNHGoogleMaps  .

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

Male (holotype, USNM). Habitus as in Figures 114 A –DView 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 –CView FIGURE 115). Ret2 strongly curved ( Fig. 115BView 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 –HView FIGURE 116. Conductor and cymbium slender ( Figs. 116 A, E –HView FIGURE 116). Embolus tip nearly 180º curved ( Figs. 116 A, GView FIGURE 116).

Female (paratype, USNM 00879002). Coloration and general habitus as in male ( Figs. 114E –HView 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 –FView 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. 117View FIGURE 117). UE with a median projection ( Fig. 117 AView FIGURE 117).

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